Breguet overcoil
Spiral plat coudé ou Bréguet | 巻上げヒゲゼンマイ／マキアゲヒゲゼンマイ | 宝玑双层游丝
Spiral coudé ou Breguet © Fondation de la Haute Horlogerie
Sometimes referred to as a "Breguet spiral", it controls the rate at which the mainspring unwinds.
Spiral coudé ou Breguet © Fondation de la Haute Horlogerie
Sometimes referred to as a "Breguet spiral", it controls the rate at which the mainspring unwinds.
Terms with the same letter
Back Bagnolet (calibre) Baguette Balance Balance cock (modern) Balance cock (traditional) Balance spring Bar Barrel Barrel arbor Basic Function Bassiner Battery Bearing Bell Bench Bent index Beryl Bezel Bezel Bezel or collet setting Birefringence Blanc roulant Blank Block Blued steel Bolt Bort Bottom plate Bow Bow lathe Brace (Bridle) Brass Breguet overcoil Bridge Brilliant cut Briolette Bruting Bulk setting Burnish Burnisher