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125 Blancpain Tourbillon, Date, Power Reserve, No. 1/8
Estimate: € 20,000 – 30,000
Brand : Blancpain
Model : Léman Tourbillon
Year : circa 2000
Case number : No. 1/8
Movement number : 422
Bracelet : leather with 18k yellow-gold Blancpain buckle
Dimensions : 38 mm
Accessories : original fitted box, instruction booklet
A fine, rare, limited, manual wind, 18k yellow-gold tourbillon wristwatch with date and power reserve. Signed dial, case and movement.
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 the balance wheel as it moves in its downward (arc) direction and slow as it moves upward, creating deviation errors in the timekeeping. By placing the balance and escapement in a carriage that revolves 3600 per minute, these errors 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.
Rare et compliquée montre tourbillon avec date et réserve de marche en or jaune 18k. Boîtier rond. Cadran argent avec index bâtons appliqués en or jaune. Mouvement mécanique.