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Results for Baume & Mercier

931 articles · 35 videos found · page 33 of 33

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Highlights: Artisanal Timepieces at Sotheby’s Hong Kong Fall Auction SJX Watches
Vacheron Constantin Mercator created Oct 2, 2023

Highlights: Artisanal Timepieces at Sotheby’s Hong Kong Fall Auction

After delving into the notable complications in Sotheby’s upcoming Hong Kong auction on October 7, we shift our focus to the timepieces exhibiting a distinct artisanal touch, spanning the encyclopaedia of decorative techniques from cloisonné enamelling to wood marquetry. Several are exquisite examples of enamel crafted by the renowned artisans Anita Porchet and her eponymous workshop, along with a pocket watch with a miniature enamel made by Hélène May-Mercier for Patek Philippe. Another highlight is the commemorative Vacheron Constantin Mercator created to mark the handover of Hong Kong to China in 1997 that was the work of a Belgium husband-and-wife enamel workshop. Important Watches I takes place on October 7, 2023. Registration for bidding and the catalogue can be accessed here.  Lot 2209: Vacheron Constantin Mercator “Hong Kong Handover 1997”  The transfer of sovereignty over Hong Kong from the United Kingdom to the People’s Republic of China was a significant historical event that brought an end to 156 years of colonial rule in the territory and marked the conclusion of the British Empire. To mark the handover, Vacheron Constantin created a special iteration of the Mercator. One of the brand’s best known models at the time, the Mercator set itself apart with a unique double retrograde display for the hours and minutes, with the top-of-the-line models having cloisonné enamel dials. While the initial Mercator editions portrayed entire continents or regi...

Watchmaking: How the Art of Precision Regulation Became a Science SJX Watches
Ulysse Nardin Oct 14, 2020

Watchmaking: How the Art of Precision Regulation Became a Science

They were once the horological elite, credited with magical powers. The precision timers who tuned the watches for the observatory trials in the 1960s and 1970s are now a dwindling band in the twilight of their lives. In those days, when mechanical precision rather than mechanical complication determined the value of a watch, precision timing was a post-graduate discipline that took a lifetime to master. Before he died last October in his 90th year, one old timer, François Mercier of Le Locle, described what he had to do to win prizes for his employers, initially Ulysse Nardin and then the hairspring spring manufacturer Spiraux Réunis. First, he had to identify the most faultless spring, calculate and shape the terminal curve, pin it up to the staff of a previously poised balance wheel. Then he would shift balance screws by hundredths of a millimetre, adjust forces and inertia in micrograms, to move a fraction of a second closer to the unattainable goal of a true and constant time. An overcoil hairspring in a contemporary Voutilainen Vingt-8 Temperature compensation  The biggest challenge was to compensate for the effects of temperature changes on the steel alloy springs of old. As the temperature rose, the spring would lose its elasticity and beat more slowly. Such springs needed a compensation balance made of two metals each having a different coefficient of expansion. Rising temperatures would cause the cut ends of the balance rim to curl inwards, thereby increasing...