$28,750
International Watch Co. , Schaffhausen, Da Vinci Tourbillon", No. 23/50, Ref. 3752. Produced in a limited edition of 50 examples in platinum. Production of this reference started in 1999.Very fine and rare, astronomic, water-resistant to 30 meters, platinum gentleman's wristwatch with round button chronograph, register, secular perpetual calendar, moon phases, flying one minute tourbillon regulator and a platinum IWC buckle. Notes What is a Tourbillon?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 obtain better precision. When a watch is in a vertical position, the force of gravity will speed up the balance wheel as it moves in its downward (arc) direction and will slow it down as it moves upward, creating deviational errors in the timekeeping. By placing the balance and escapement in a carriage that revolves 360 degrees per minute, these errrs become averaged and the timekeeping becomes constant and consequently adjustable. Created by Abraham Louis Breguet in 1795, the tourbillon is considered a difficult and complex achievement by any watch manufacture.
Auctioneer:
Antiquorum
Date:
2003-03-19
