Calibre Vulcain V-57

Technical characteristics
La Joux-Perret LJP 8121 MP 131⁄4-lignes mechanical unidirectional self-winding calibre, single-pusher type chronograph calibre with date, palladium coating, côtes de Genève motifs, blued screws, 25 jewels, 105 components, lift angle 50°

Dimensions
diameter 30.00 mm, thickness 8.40 mm

Frequency
28,800 vibrations per hour

Power reserve
42 hours