Pocket watch: very well preserved pocket chronometer by Vacheron & Constantin, ca. 1905 Ca. Ø49mm, approx. 78g, 18k gold, engine turned, case number 187157, movement number 310304, dome marked 'Demi-Chronometre', exquisite, signed Ankerchronometer movement, fine adjusting device, wolf's toothing, moustache lever, perfectly preserved original enamel dial, gold hands, in excellent condition, in working order. The description 'Demi-Chronomètre' was used by Vacheron Constantin to indicate that the movement was sent to the observatory for chronometric control, but for commercial reasons did not stay long enough to complete the entire test procedure. To our knowledge, only two Geneva companies used the designation 'Demi-Chronomètre': Vacheron Constantin and Henry Capt (source:https://www.cortrie.de/go/B3R).

Composed of several subsidiaries, the Drouot Group is a major player in the art market. Hôtel Drouot, located in the heart of Paris, has been the world's largest public auction center since 1852. 15 salerooms are available to more than 70 auction houses. The emulation generated by an annual offer of 230,000 artworks from 21 major specialities - from Antiquity to street art - attracts some 3,000 visitors every day. The Group's digital platform, Drouot.com, offers digital sales - Live auctions (live broadcasting and participation in auctions), Online-only auctions (dematerialised auctions) and Buy Now sales (sales of lots at fixed prices). Nearly 2 million items are offered annually by 600 auction houses. Auction news is reported every week in La Gazette Drouot, the leading weekly magazine for the art market and culture published by Auctionspress.