{"id":19965,"date":"2022-10-17T14:43:37","date_gmt":"2022-10-17T12:43:37","guid":{"rendered":"https:\/\/swiss-watch-passport.ch\/splendide-montre-ultra-compliquee-dhenri-grandjean-fondateur-de-lobservatoire-de-neuchatel-en-vente-chez-antiquorum\/"},"modified":"2022-11-09T18:38:33","modified_gmt":"2022-11-09T17:38:33","slug":"spectacular-ultra-complicated-watch-of-henri-grandjean-founder-of-the-neuchatel-observatory-on-sale-at-antiquorum","status":"publish","type":"post","link":"https:\/\/swiss-watch-passport.ch\/en\/spectacular-ultra-complicated-watch-of-henri-grandjean-founder-of-the-neuchatel-observatory-on-sale-at-antiquorum\/","title":{"rendered":"Antiquorum&#8217;s Record! A splendid ultra-complicated watch of Henri Grandjean, founder of the Neuch\u00e2tel Observatory, hit the auctions market"},"content":{"rendered":"<section class=\"l-section wpb_row height_small\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_flex valign_top type_default stacking_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p><strong>It rocked! This gold pocket watch with eight complications rarely combined in a single piece is one of the most complex ever made by Henri Grandjean. This chronometric treasure was\u00a0<a href=\"https:\/\/live.antiquorum.swiss\/lots\/view\/1-6KLU6H\/henri-grandjean-cie\">back at auction<\/a> at the <a href=\"https:\/\/goo.gl\/maps\/2eGPsQy1yAo38DFJ6\">Beau Rivage in Geneva<\/a> on 6 November 2022. A perfect opportunity to highlight one of Switzerland&#8217;s major master watchmakers, and to\u00a0tickle the guardians of Swiss museum collections<\/strong>.<\/p>\n<p><em>Jo\u00ebl A. Grandjean,\u00a0<a href=\"https:\/\/www.jsh-journal-suisse-horlogerie.org\">JSH\u00ae Magazine<\/a> &amp; Swiss Watch Passport&#8217;s Editor in chief<\/em><br \/>\n<em><a href=\"https:\/\/www.instagram.com\/swisswatchpassport\/\">Insta SWP<\/a> | <a href=\"https:\/\/www.instagram.com\/jshmagazine1876\/\">Insta JSH\u00ae<\/a> | <a href=\"https:\/\/www.facebook.com\/JSH1876\/\">Facebook<\/a> | <a href=\"https:\/\/twitter.com\/tagpress\">Twitter<\/a> | <a href=\"https:\/\/www.linkedin.com\/company\/jsh-archives-patrimoine\/\">Linkedin<\/a><\/em><\/p>\n<\/div><\/div><div class=\"w-btn-wrapper align_none\"><a class=\"w-btn us-btn-style_1\" target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/live.antiquorum.swiss\/lots\/view\/1-6KLU6H\/henri-grandjean-cie\"><span class=\"w-btn-label\">Unbelievable result, auctioned at CHF 145,000<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row height_small\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_flex valign_top type_default stacking_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p>{Updated on 7 November 2022} Few Swiss watchmakers have had such an impact on their times, on the history of chronometry, on the history of their municipality, Le Locle, and even, as a National Council member, on the history of Switzerland. The timepiece that has come under the <a href=\"https:\/\/live.antiquorum.swiss\/lots\/view\/1-6KLU6H\/henri-grandjean-cie\">Antiquorum<\/a> spotlight in 2022 concentrates eight watchmaking\u00a0complications in its solid gold case of rare finesse, the combination of which embodies absolute expertise: retrograde perpetual calendar (fly-back), chronograph, moon phases, quarter repetition by two hammers on two gongs, dual time zone.<\/p>\n<\/div><\/div><div class=\"w-image align_none meta_simple\"><div class=\"w-image-h\"><img decoding=\"async\" width=\"2560\" height=\"1683\" src=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-Swiss-Watch-Passport-Henri-Grandjean-Antiquorum-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-Swiss-Watch-Passport-Henri-Grandjean-Antiquorum-scaled.jpg 2560w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-Swiss-Watch-Passport-Henri-Grandjean-Antiquorum-300x197.jpg 300w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-Swiss-Watch-Passport-Henri-Grandjean-Antiquorum-600x394.jpg 600w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/div><div class=\"w-image-meta\"><div class=\"w-image-title\">On sale at Antiquorum in Beau-Rivage (Geneva) on 6 November 2022: Henri Grandjean, pocket watch with complications, Perpetual Calendar, GMT, Chronograph, Quarter Repeats, Moon Phases...<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row height_small\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_flex valign_top type_default stacking_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p><strong>This pocket watch is priceless<\/strong><\/p>\n<p>Its value is far beyond the fluctuating vagaries of a market that offers and demands according to elusive and unexplainable trends. Astonishingly, its success seems to corroborate a resurgence in interest in particular pocket watches. Thus, as its impressive performance at the Geneva auction in early November 2022 seems to confirm that its status as a heritage watchmaking masterpiece exceeds all financial matters. ll the more so as it is in an exceptional condition both in terms of conservation and functioning. It seems that the <a href=\"http:\/\/www.mhl-monts.ch\/en\/index.php\">Ch\u00e2teau des Monts<\/a> or the <a href=\"https:\/\/www.chaux-de-fonds.ch\/en\/musees\/mih\">MIH<\/a>, namely the Mus\u00e9e d&#8217;horlogerie du Locle and the Mus\u00e9e International d&#8217;Horlogerie de la Chaux-de-Fonds, whose budgets were unfortunately not in the running, were desperately looking for it.<\/p>\n<blockquote>\n<p><em>This Henri Grandjean pocket watch is definitively an essential part of the universal watchmaking heritage<\/em><\/p>\n<\/blockquote>\n<p>Indeed, Antiquorum, in summing up this exciting autumn 2022 sale, with a respectable total of CHF 8.833 million, has selected this rare timepiece as one of its <strong><a href=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Watches-and-Jewels-Auctions-Antiquorum-Auctioneers-since-1974.pdf\">top ten most valuable lots<\/a><\/strong>.<\/p>\n<blockquote>\n<p><em>This ranks Henri Grandjean 143 years after his death among the most prestigious, alongside Rolex, Patek Philippe, Audemars Piguet and A. Lange &amp; S\u00f6hne. A real achievement<\/em><\/p>\n<\/blockquote>\n<\/div><\/div><div class=\"w-image align_none meta_simple\"><div class=\"w-image-h\"><img decoding=\"async\" width=\"800\" height=\"449\" src=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-SWiss-Watch-Passport-observatoire_de_Neuchatel_438-copie-2.jpg\" class=\"attachment-full size-full\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-SWiss-Watch-Passport-observatoire_de_Neuchatel_438-copie-2.jpg 800w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-SWiss-Watch-Passport-observatoire_de_Neuchatel_438-copie-2-300x168.jpg 300w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-SWiss-Watch-Passport-observatoire_de_Neuchatel_438-copie-2-600x337.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/div><div class=\"w-image-meta\"><div class=\"w-image-title\">The Swiss watchmaker and politician Henri Grandjean had the Neuch\u00e2tel Observatory built and connected by cable to the watchmaking school in Le Locle, which he also had built, bringing precision to the top of the canton. Even today, at the entrance to Le Locle, a sign indicates \"Cit\u00e9 de la Pr\u00e9cision\".<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row height_small\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_flex valign_top type_default stacking_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p><strong>A builder: from the Observatory to Unesco<\/strong><\/p>\n<p>Watchmaker Henri Grandjean was an extraordinary builder. We have him to thank for the erection of the Neuch\u00e2tel Observatory, a watchmaking institution to which the most prestigious names still lay claim and which, from 1931 until recently, provided the whole of Switzerland with <a href=\"https:\/\/www.rts.ch\/audio-podcast\/2022\/audio\/le-signal-horaire-de-l-observatoire-chronometrique-de-neuchatel-25840577.html\">radio time<\/a>. He was also the architect of the reference point for precision in Le Locle (Cit\u00e9 de la Pr\u00e9cision) thanks to the cable he had laid between the Observatory and the watchmaking school in Le Locle, which he also had built. Finally, among other architectural and sectorial footprints that he has left, we owe him the building of the Quartier de l&#8217;An-Neuf (today the Quartier du Progr\u00e8s), which in 2009 enabled Le Locle to join the UNESCO application for the registration of the Urbanisme Horloger as a world heritage property in La Chaux-de- Fonds. (See <a href=\"https:\/\/henri-grandjean.ch\/wp-content\/uploads\/2022\/07\/DOSSIER-DE-CANDIDATURE-COMPLET.pdf\">the official file<\/a>, page 215).<\/p>\n<p>In the city of Le Locle, right on the edge of the Quartier du Progr\u00e8s, a street is named after him. Although his first name is misspelled there &#8211; with a &#8220;y&#8221; instead of an &#8220;i&#8221; &#8211; his memory is still alive. At the time, when this great chronometer-maker delivered his models to the markets of the British Empire, including India, he would put &#8220;Henry&#8221; on the dials. Similarly, he would sometimes sign &#8220;Enrique&#8221; for his watches delivered to South American markets.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row height_small\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_flex valign_top type_default stacking_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"w-image align_none meta_simple\"><div class=\"w-image-h\"><img decoding=\"async\" width=\"1418\" height=\"1302\" src=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/2022-10-16_a_22.26.28-removebg.png\" class=\"attachment-full size-full\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/2022-10-16_a_22.26.28-removebg.png 1418w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/2022-10-16_a_22.26.28-removebg-300x275.png 300w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/2022-10-16_a_22.26.28-removebg-600x551.png 600w\" sizes=\"auto, (max-width: 1418px) 100vw, 1418px\" \/><\/div><div class=\"w-image-meta\"><div class=\"w-image-title\">In 18-carat multicoloured gold (yellow, pink, green and white). Keyless winding, savonnette case (two covers, one on the front and one on the back), round and massive, impressive, made for the Spanish or South American market, with small seconds at 6 o'clock and eight watch complications<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row height_small\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_flex valign_top type_default stacking_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p><strong>Ultimate precision quest, the &#8220;Delight of the Captains&#8221;<\/strong><\/p>\n<p>When back from South America in his early thirties, where he had gone to manage the horological comptoirs his father David-Henri Grandjean had set up in Peru, Bolivia and Brazil, Henri Grandjean is said to have declared, &#8220;<em>We are going to make precision watches like the English.<\/em>&#8221; Indeed, the navigators of the national navies of those days praised the remarkable accuracy of the marine chronometers manufactured by Henri Grandjean &amp; Cie, on-board instruments that they had christened &#8216;Delights of Captains\u2019. It is true that the watchmaker from Le Locle had founded, with a descendant of Jean-Richard and Ulysse Nardin, the &#8220;Swiss Marine Chronometer Industry&#8221;, a mutual supply and distribution structure.<\/p>\n<blockquote>\n<p><em>Any major Collector in the world surely has his Henri Grandjean&#8221;, <\/em>use to claim Helmut Crott, renowned expert and father of watch auctions<\/p>\n<\/blockquote>\n<p>Few people, in fact, since it is estimated that between 150 and 200 pieces were manufactured by Henri Grandjean during his lifetime. Some of these are to be discovered in the main watchmaking museums. As in Le Locle, where the Ch\u00e2teau des Monts even has a &#8220;Henri Grandjean&#8221; archive of historical documents.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row height_small\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_flex valign_top type_default stacking_default\"><div class=\"vc_col-sm-6 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p><strong>Inventions and chronometry<\/strong><\/p>\n<p>As an innovative spirit, Henri Grandjean &#8211; also written GrandJean &#8211; experimented with various procedures: screw or mass balances, escapements with pivoted or spring detents, circular or spherical balance springs. Although none of these systems seemed better than another, he insisted on the terminal curves of the balance spring, as calculated by the mathematician Edouard Phillips (1821-1889).<\/p>\n<p>Before Nobel Prize-winning physicist Charles-Edouard Guillaume (1861-1938), he planned to use a nickel alloy for the balance springs. Working on different calibres, Henri Grandjean showed that the dimension of a movement does not determine its precision. While his favourite calibre is a 56 lignes with two plates, with a power reserve of fifty-six hours, he also made small marine watches, up to 26 lignes. He is known for his sense of technical simplification and for the indisputably high level of his finishings.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-6 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"w-image align_none meta_simple\"><div class=\"w-image-h\"><img decoding=\"async\" width=\"968\" height=\"1300\" src=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Capture-decran-2022-10-17-a-02.00.05.png\" class=\"attachment-full size-full\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Capture-decran-2022-10-17-a-02.00.05.png 968w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Capture-decran-2022-10-17-a-02.00.05-223x300.png 223w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Capture-decran-2022-10-17-a-02.00.05-447x600.png 447w\" sizes=\"auto, (max-width: 968px) 100vw, 968px\" \/><\/div><div class=\"w-image-meta\"><div class=\"w-image-title\">Henri Grandjean, (1803-1879), Major Watchmaker, Leading Builder. Fleurier, Le Locle, Geneva and the world<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row height_small\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_flex valign_top type_default stacking_default\"><div class=\"vc_col-sm-6 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"w-popup w-btn-wrapper align_none\"><button class=\"w-popup-trigger type_btn w-btn us-btn-style_1\" aria-label=\"Technical Data\" type=\"button\"><span class=\"w-btn-label\">Technical Data<\/span><\/button><div class=\"w-popup-overlay\" style=\"background:rgba(0,0,0,0.85);\"><\/div><div class=\"w-popup-wrap layout_default\" role=\"dialog\" aria-modal=\"true\" aria-label=\"Popup\" style=\"--title-color:var(--color-content-heading);--title-bg-color:var(--color-content-bg-alt);--content-color:var(--color-content-text);--content-bg-color:var(--color-content-bg);--popup-width:600px;--popup-padding:5%;\"><button aria-label=\"Close\" class=\"w-popup-closer\" type=\"button\"><\/button><div class=\"w-popup-box animation_fadeIn closerpos_outside with_title\"><div class=\"w-popup-box-h\"><div class=\"w-popup-box-title\">Fiche Technique<\/div><div class=\"w-popup-box-content\"><p><strong>Henri Grandjean, 8 complications pocket watch <\/strong><br \/>\n<strong>Perpetual Calendar, GMT, Chronograph, Quarter repeater, Moon phases&#8230;<\/strong><\/p>\n<p><a href=\"https:\/\/swiss-watch-passport.ch\/splendide-montre-ultra-compliquee-dhenri-grandjean-fondateur-de-lobservatoire-de-neuchatel-en-vente-chez-antiquorum\/00_jsh-swiss-watch-passport-henri-grandjean-pocket-watch-helmut-crott-sog-4\/\" rel=\"attachment wp-att-19935\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19935\" src=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-Swiss-Watch-Passport-Henri-Grandjean-Pocket-Watch-Helmut-Crott-sog-4.jpg\" alt=\"\" width=\"691\" height=\"689\" srcset=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-Swiss-Watch-Passport-Henri-Grandjean-Pocket-Watch-Helmut-Crott-sog-4.jpg 691w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-Swiss-Watch-Passport-Henri-Grandjean-Pocket-Watch-Helmut-Crott-sog-4-300x300.jpg 300w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-Swiss-Watch-Passport-Henri-Grandjean-Pocket-Watch-Helmut-Crott-sog-4-600x598.jpg 600w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/00_JSH-Swiss-Watch-Passport-Henri-Grandjean-Pocket-Watch-Helmut-Crott-sog-4-150x150.jpg 150w\" sizes=\"auto, (max-width: 691px) 100vw, 691px\" \/><\/a><\/p>\n<p>18K Multi-coloured gold (yellow, pink, green and white), hunting-case, keyless- winding, round-shaped, large, heavy and impressive, pocket watch, made for the Spanish or South American market, with subsidiary seconds at 6 and eight horological complications.<\/p>\n<p><strong>Functions and complications<\/strong><br \/>\n(Quanti\u00e8me Perp\u00e9tuel, GMT, Chronographe, R\u00e9p\u00e9tions des quarts, Phases de Lune&#8230;)<\/p>\n<p><span style=\"text-decoration: underline;\">Quarter-repeater<\/span> by two hammers on two steel gongs activated by the slide located on the case-band at 6 o\u2019clock.<br \/>\n<span style=\"text-decoration: underline;\">1\/5 second chronograph<\/span> activated by the single rectangular push- piece located on the edge of the bezel at 6 o\u2019clock, with outer ring.<br \/>\n<span style=\"text-decoration: underline;\">Instantaneous perpetual calendar<\/span>, Retrograde (fly-back) date of the month, half-circle graduation at 12 o\u2019clock with index<br \/>\n<span style=\"text-decoration: underline;\">Month of the year<\/span>, subsidiary dial at 4 o\u2019clock; indications given in Spanish<br \/>\n<span style=\"text-decoration: underline;\">Age and phases of the moon<\/span>, subsidiary dial, graduated from 0 to 291\u20442, and aperture at 12 o\u2019clock<br \/>\n<span style=\"text-decoration: underline;\">GMT<\/span>, hours and minutes of a second time\u00a0zone, concentric yellow gold hands,\u00a0time-setting by push-pin on the right\u00a0side of the pendant; the repeater\u00a0mechanism is indexed to this set of hand.<\/p>\n<p><strong>Caliber 20&#8221;&#8217; (lines)<\/strong><br \/>\n20\u2019\u2019\u2019 movement, nickel-plated, \u201cfausses c\u00f4tes\u201d decoration, 37 jewels, going barrel, wolf-teeth winding wheels, gold train of wheels, straight-line equilibrated lever escapement, cut bimetallic compensated balance, blued steel hairspring with terminal curve, polished steel index-regulator; repeater work on the main plate, under the dial; chronograph work on the top plate.<\/p>\n<p><strong>Dial<\/strong><br \/>\nWhite colour enamel dial, with suspended \u201cBreguet\u201d numerals; blued steel \u201cSpade\u201d hands (time-setting by push-pin on the left side of the pendant); inner ring with radial Roman numerals for the dual-time.<\/p>\n<p><strong>Four-coloured case<\/strong><br \/>\nFive body massive \u201cbassine et filets, carrure ronde\u201d case, profusely chased and engraved overall with elaborate foliage; cover and case-back with four colour high- relief decoration of iris flowers cartouche, scrolls and a mask; engraved and guilloch\u00e9 (engine-turned) gold cuvette (dome); additional glazed cuvette to protect the movement<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"w-separator size_small\"><\/div><div class=\"w-image align_none\"><div class=\"w-image-h\"><img decoding=\"async\" width=\"933\" height=\"1320\" src=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Watches-and-Jewels-Auctions-Antiquorum-Auctioneers-since-1974_p1-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Watches-and-Jewels-Auctions-Antiquorum-Auctioneers-since-1974_p1-scaled.jpg 933w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Watches-and-Jewels-Auctions-Antiquorum-Auctioneers-since-1974_p1-212x300.jpg 212w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Watches-and-Jewels-Auctions-Antiquorum-Auctioneers-since-1974_p1-424x600.jpg 424w\" sizes=\"auto, (max-width: 933px) 100vw, 933px\" \/><\/div><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-6 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"w-btn-wrapper align_none\"><a class=\"w-btn us-btn-style_1\" target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/henri-grandjean.ch\"><span class=\"w-btn-label\">Henri-Grandjean Association<\/span><\/a><\/div><div class=\"w-separator size_small\"><\/div><div class=\"w-image align_none\"><div class=\"w-image-h\"><img decoding=\"async\" width=\"933\" height=\"1320\" src=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Watches-and-Jewels-Auctions-Antiquorum-Auctioneers-since-1974_p2-scaled.jpg\" class=\"attachment-full size-full\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Watches-and-Jewels-Auctions-Antiquorum-Auctioneers-since-1974_p2-scaled.jpg 933w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Watches-and-Jewels-Auctions-Antiquorum-Auctioneers-since-1974_p2-212x300.jpg 212w, https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/Watches-and-Jewels-Auctions-Antiquorum-Auctioneers-since-1974_p2-424x600.jpg 424w\" sizes=\"auto, (max-width: 933px) 100vw, 933px\" \/><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"It rocked! This gold pocket watch with eight complications rarely combined in a single piece is one of the most complex ever made by Henri Grandjean. This chronometric treasure was\u00a0back at auction at the Beau Rivage in Geneva on 6 November 2022. A perfect opportunity to highlight one of Switzerland&#8217;s major master watchmakers, and to\u00a0tickle...","protected":false},"author":2,"featured_media":19929,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3565,4133,3578,84,3605],"tags":[4068,3790,3638,5289,4056,3640,5290,5291,3642,5218,3644,3645,3646,4982,3776,3649,3650,3651,5292,5293,3653,3654,3655,5294,3657,3658,3659],"class_list":["post-19965","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1010-10h10-10past10","category-1st-en","category-historical-features","category-horlogers-celebres","category-wnews","tag-antiquorum-en","tag-auctions-en","tag-cotraitants-en","tag-crott-en","tag-crott-auctioneers-en","tag-editorinchief-en","tag-encheres-en","tag-expert-en","tag-fournisseurs-en","tag-henri-grandjean-en","tag-horlogerie-en","tag-journalsuissehorlogerie-en","tag-jsh1876-en","tag-nobel-en","tag-patek-en","tag-ppdc-en","tag-prowatch-en","tag-rolex-en","tag-second-hand-watches-en","tag-second-market-en","tag-swisswatchpassport-en","tag-tagpress41-en","tag-therightplace2be-en","tag-watchbox-en","tag-watchcafe-en","tag-watchmaking-en","tag-watchpassport-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Antiquorum&#039;s Record! 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A splendid ultra-complicated watch of Henri Grandjean, founder of the Neuch\u00e2tel Observatory, hit the auctions market - Watch Passports by JSH\u00ae\" \/>\n<meta property=\"og:url\" content=\"https:\/\/swiss-watch-passport.ch\/en\/spectacular-ultra-complicated-watch-of-henri-grandjean-founder-of-the-neuchatel-observatory-on-sale-at-antiquorum\/\" \/>\n<meta property=\"og:site_name\" content=\"Watch Passports by JSH\u00ae\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/joel.grandjean\" \/>\n<meta property=\"article:published_time\" content=\"2022-10-17T12:43:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-11-09T17:38:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/swiss-watch-passport.ch\/wp-content\/uploads\/2022\/10\/01_JSH-Swiss-Watch-Passport-Henri-Grandjean-Association-Montre-de-Poche-Antiquorum-copie-600x385.png\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"385\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"\u270d Joel A. 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Grandjean","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/ef4a158da8673a24dc02c72afb2fd8d98ab544725d60023ed25351e2f197e012?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/ef4a158da8673a24dc02c72afb2fd8d98ab544725d60023ed25351e2f197e012?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/ef4a158da8673a24dc02c72afb2fd8d98ab544725d60023ed25351e2f197e012?s=96&d=mm&r=g","caption":"\u270d Joel A. Grandjean"},"description":"Chief editor &amp; publisher of the international watch magazine \"Swiss Watch Passport\u00ae (by JSH\u00ae)\" and of the Journal Suisse d'Horlogerie JSH\u00ae (the oldest Swiss Watch Journal founded in 1876). Member of Impressum, PressTourim and Club Suisse de la Presse, this Ivory Coast-born Swiss, descendant of a family of watchmakers, co-founded the magazines Montres Passion &amp; Uhren Welt at Ringier in 1993 with Kenan Tegin, as well as the Prix Montre de l'Ann\u00e9e. Founded in 2005, his press agency 1876 News (formerly T\u00e0G Press +41T) contributes to some twenty media through a network of around ten journalists or experts. These include Journal Suisse d'Horlogerie (2008-2014), Heure Suisse\/Schweiz and Ann\u00e9e Horlog\u00e8re, F\/D\/E (2011-2014), Watchonista.com (2013-2019). In 2019, he founded and chaired \"JSH Archives &amp; Patrimoine\" to relaunch the Swiss watchmaking journal JSH. Then in 2021, he built on his very first editorial venture, the \"bloghorloger.ch\" established on the web in 2003, to come back online with the Swiss Watch Passport\u00ae (by JSH\u00ae). Jo\u00ebl A. Grandjean is a member of the SSC, the Swiss Society of Chronometry, and of the jury of the Prix Ga\u00efa, aka the \"Nobel of watchmaking\" awarded since 1992 by the MIH, Le Mus\u00e9e International de l'Horlogerie in La Chaux-de-Fonds","sameAs":["https:\/\/grandjean.watch","https:\/\/www.facebook.com\/joel.grandjean","https:\/\/www.instagram.com\/grandjean.grammson\/","https:\/\/www.linkedin.com\/in\/joel-a-grandjean-\u270d-5524357\/","https:\/\/x.com\/https:\/\/x.com\/tagpress","https:\/\/www.youtube.com\/@joela.grandjeanprowatchpre906"],"url":"https:\/\/swiss-watch-passport.ch\/en\/author\/joel\/"}]}},"_links":{"self":[{"href":"https:\/\/swiss-watch-passport.ch\/en\/wp-json\/wp\/v2\/posts\/19965","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swiss-watch-passport.ch\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swiss-watch-passport.ch\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swiss-watch-passport.ch\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/swiss-watch-passport.ch\/en\/wp-json\/wp\/v2\/comments?post=19965"}],"version-history":[{"count":0,"href":"https:\/\/swiss-watch-passport.ch\/en\/wp-json\/wp\/v2\/posts\/19965\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/swiss-watch-passport.ch\/en\/wp-json\/wp\/v2\/media\/19929"}],"wp:attachment":[{"href":"https:\/\/swiss-watch-passport.ch\/en\/wp-json\/wp\/v2\/media?parent=19965"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swiss-watch-passport.ch\/en\/wp-json\/wp\/v2\/categories?post=19965"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swiss-watch-passport.ch\/en\/wp-json\/wp\/v2\/tags?post=19965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}