Extremely rare and well-preserved fine ZENITH Observatory Competition chronometer SN. 5011 O ( «O» stands for Observatory, 50mm, 22 lines, high frequency 21’600 alt/hour, Guillaume balance), comes with its original testing wooden housing. Made in 1967 exclusively for observatory competitions, that particular piece got “Primes” (11th place of around 180 participants in the category, with score 2.44) at the observatory competition in Neuchâtel in 1967 thanks to Jean-Pierre Vuille, who adjusted this movement for the trials at Zenith. To reduce the friction, 48-hour power reserve indication is not functional, corresponding functionality was removed by adjuster, during preparation for the trials. ![]() Moreover it’s very unusual, that the Guillaume balance is hand-signed by Jean-Pierre Vuille with “JPV” initials. In 1960, the large 50mm Calibre 5011 set a record-breaking precision standard in its category and was used to power marine chronometers, pocket watches and table clocks. From August 1September 12, 2023, members who have two successful referrals are eligible to receive an Alo gift bundle, which includes a free six-month Alo Moves. It was also used in the Pilot Montre d’Aéronef Type 20 in limited quantities (from about 350 unused movements). The discount is for 40 or 40 off of any Oura Ring Gen3 and one month of Oura Membership included for new Gen3 members, and it can be redeemed by five friends or family members. In 1967, Calibre 5011O was the most accurate movement ever tested to date by the Neuchâtel Observatory. Start with 10 client seats and expand as needed for just 2.25 per additional seat per. We have a professional editorial team and update coupons every day. ![]() Exclusive Offer, Get a 30-day free trial on our comprehensive plan and explore all the amazing features and benefits it offers without any commitment. The biggest discount of Cronometer is 20 Off. CRONOMETER DISCOUNT SERIALĪbsolute record and serial prize for the 4 best timepieces from the same manufacturer.Ĭase: two-body wooden protective/testing case, circular case, polished bezel, glazed transparent display back, large crown. Top Coupon Including 10 Off On Gold Subscription Cronometer Discount & Free Nutrition Plan - Cronometer Coupon.
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