Cortebert metal pocket watch, Switzerland, first half of 20th century CASE: metal with double caseback; reference visible on the inner surface of the outermost caseback; on the outer surface of the innermost caseback engraved: "CORTEBERT/Ancre Ligne Droite/15 Rubis/RECLAGE DE PRECISION" DIAL: in white enamel with Arabic numerals for hours, signed: "Cortebert"; small auxiliary dial for seconds with Arabic numerals placed at six o'clock MOVEMENT: hand-wound with anchor escapement; mechanism signed "Cortebert" DIAMETER: mm 45 WEIGHT: gr. 77 The watch has been meticulously maintained and overhauled over time, but no guarantees are given as to its current functioning or the presence of non-original parts or restorations

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.