{"id":21387,"date":"2022-12-20T17:31:54","date_gmt":"2022-12-20T16:31:54","guid":{"rendered":"https:\/\/swiss-watch-passport.ch\/?p=21387"},"modified":"2022-12-20T17:31:55","modified_gmt":"2022-12-20T16:31:55","slug":"spectacular-ultra-complicated-watch-of-henri-grandjean-founder-of-the-neuchatel-observatory","status":"publish","type":"post","link":"https:\/\/swiss-watch-passport.ch\/en\/spectacular-ultra-complicated-watch-of-henri-grandjean-founder-of-the-neuchatel-observatory\/","title":{"rendered":"Spectacular ultra-complicated watch of Henri Grandjean, founder of the Neuch\u00e2tel Observatory"},"content":{"rendered":"

It’s popping up again! This gold pocket watch with eight complications rarely <\/strong>combined in a single piece is one of the most complex ever made by Henri <\/a><\/strong>Grandjean<\/a>. This chronometric treasure is back at auction at the Beau Rivage in <\/strong>Geneva on 6 November 2022.<\/strong><\/p>\n

Une s\u00e9lection de Shaniah Asha Gibson \/ @TRP, Public Relations Cabinet<\/em>
\nInsta<\/a>\u00a0|\u00a0Linkedin<\/a>\u00a0|\u00a0Facebook<\/a>\u00a0|\u00a0Insta JSH<\/a>\u00a0|\u00a0Insta SWP<\/a>\u00a0|\u00a0S\u2019abonner \u00e0 JSH<\/a><\/em><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>

\"\"<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>

A perfect opportunity to highlight one of Switzerland’s major master watchmakers, and to appeal to the guardians of Swiss museum collections.<\/strong><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>

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 coming under the Antiquorum spotlight in 2022 concentrates eight watchmaking complications 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><\/div><\/div><\/div><\/div><\/section>

This pocket watch is priceless<\/strong>
\nIts value is far beyond the fluctuating vagaries of a market that offers and demands according to elusive and unexplainable trends. Thus, whatever its achievement at the Geneva auction in early November 2022, its status as a heritage watchmaking masterpiece exceeds all financial matters. all the more so as it is in an exceptional condition in terms of conservation and functioning. It seems that it is reaching out to the Ch\u00e2teau des Monts or the MIH, namely the Mus\u00e9e d’Horlogerie du Locle and the Mus\u00e9e International d’Horlogerie de la Chaux-de-Fonds, so that they may succeed, and if necessary, with patrons, in raising the required funds for its purchase. This Henri Grandjean pocket watch is essential to the universal watchmaking heritage.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>

A builder: from the Observatory to Unesco<\/strong>
\nWatchmaker 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 radio time. 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’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-deFonds.<\/p>\n<\/div><\/div>

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 – with a “y” instead of an “i” – 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 “Henry” on the dials. Similarly, he would sometimes sign “Enrique” for his watches delivered to South American markets.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>

Ultimate precision quest, the “Delight of the Captains”<\/strong>
\nBack 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, “We are going to make precision watches like the English. Indeed, the navigators of the national navies of those days praised the remarkable accuracy of the marine chronometers manufactured by Henri Grandjean & Cie, onboard instruments that they had christened ‘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 “Swiss Marine Chronometer Industry”, a mutual supply and distribution structure.<\/p>\n<\/div><\/div>

\u00ab<\/strong>
\nAny great Collector in the world surely has his Henri Grandjean”,<\/strong>
\nclaims Helmut Crott, a renowned expert<\/strong>
\nand father of watch auctions<\/strong><\/p>\n<\/div><\/div>

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 “Henri Grandjean” archive of historical documents.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>

Inventions and chronometry<\/strong>
\nAs an innovative spirit, Henri Grandjean – also written Grandjean – experimented with various procedures: screw or mass balances, escapements with pivoted or spring detents, and 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

Before Nobel Prize-winning physicist Charles-Edouard Guillaume (1861-1938), he planned to use a nickel alloy for the balance springs. Working on different calibers, Henri Grandjean showed that the dimension of a movement does not determine its precision. While his favorite caliber is 56 lines with two plates, with a power reserve of fifty-six hours, he also made small marine watches, up to 26 lines. 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><\/div><\/section>

Technical data: Henri Grandjean, 8 complications pocket watch Perpetual Calendar, GMT, Chronograph, Quarter repeater, Moon phases… <\/strong><\/p>\n<\/div><\/div>

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<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>

Functions and complications Quarter-repeater by two hammers on two steel gongs activated by the slide located on the case band at 6 o\u2019clock. 1\/5 second chronograph activated by the single rectangular push-piece located on the edge of the bezel at 6 o\u2019clock), with an outer ring. Instantaneous perpetual calendar Retrograde (fly-back) date of the month (half-circle graduation at 12 o\u2019clock with index Retrograde (fly-back) date of the month, half-circle graduation at 12 o\u2019clock with index Month of the year, subsidiary dial at 4 o\u2019clock; indications given in Spanish Age and phases of the moon, subsidiary dial, graduated from 0 to 29\u00bd, and aperture at 12 o\u2019clock Hours and minutes of a second-time zone, concentric yellow gold hands, time-setting by push-pin on the right side of the pendant; the repeater mechanism is indexed to this set of hands.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

\"\"<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>

Caliber 20”’ (lignes)<\/strong>
\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 a terminal curve, polished steel index-regulator; repeater work on the main plate, under the dial; chronograph work on the top plate.<\/p>\n<\/div><\/div>

Dial<\/strong>
\nWhite color 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<\/div><\/div>

Four-colored case<\/strong>
\nFive-body massive \u201cbassine et filets, carrure ronde\u201d case, profusely chased and engraved overall with elaborate foliage; cover and case-back with four color 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><\/div><\/section>

Henri Grandjean (Official)<\/span><\/a><\/div><\/div><\/div><\/div>
Results of the sale<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"It’s popping up again! 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 is back at auction at the Beau Rivage in Geneva on 6 November 2022. Une s\u00e9lection de Shaniah Asha Gibson \/ @TRP, Public Relations...","protected":false},"author":67,"featured_media":21363,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3565,36,3600],"tags":[4068,5388,5218,5372],"class_list":["post-21387","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1010-10h10-10past10","category-histoire-horlogerie","category-pr-releases","tag-antiquorum-en","tag-auction-en","tag-henri-grandjean-en","tag-montre-en"],"acf":[],"yoast_head":"\nSpectacular ultra-complicated watch of Henri Grandjean, founder of the Neuch\u00e2tel Observatory - Watch Passports by JSH\u00ae<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/swiss-watch-passport.ch\/en\/spectacular-ultra-complicated-watch-of-henri-grandjean-founder-of-the-neuchatel-observatory\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Spectacular ultra-complicated watch of Henri Grandjean, founder of the Neuch\u00e2tel Observatory - 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