68,500 CHF
DEWITT, REF. 8003.20, TOURBILLON FORCE CONSTANTE, PLATINUM DeWitt, Genève, "Acadamia, Tourbillon Force Constante," No. 25/25, Ref 8003.20. Made in a limited edition of 25 pieces, sold on June 6th, 2007. Extremely fine, water-resistant, platinum wristwatch with visible flying one minute tourbillon regulator, patented spherical differential system for winding the 120-hour power reserve and an 18K white gold DeWitt deployant clasp. Accompanied by the original fitted box, certificate of authenticity and instruction manual. Three-body, solid, polished, notched platinum bezel, straight lugs, transparent back with 6 screws, sapphire crystals. Grey, applied gold Arabic, dot and Roman numerals, force constante indication at 9, aperture for the tourbillon at 5. White gold epee hands. Cal DW 8003, rhodium-plated, fausses cotes decoration, 26 jewels, lateral lever escapement, one-minute fl ying tourbillon with special 3 arms Gyromax-type balance timed in 6 positions, shock absorber, self-compensating fl at balance spring. Dial, case and movement signed. Diam. 43 mm. Thickness 13 mm. Notes What is a Tourbillon Regulator? A Tourbillon is a regulating mechanism in which the escapement of a movement is housed within a revolving carriage. It was developed in an effort to attain better precision. When a watch is in a vertical position, the force of gravity will speed the balance wheel as it moves in its downward (arc) direction and slow it as it moves upward, creating deviational error
Auctioneer:
Antiquorum
Date:
2011-11-13
