MOVEMENT Caliber Breitling 10 Movement self-winding mechanical Power reserve approx. 42 hours Vibration 28,800 v.p.h Jewel 25 jewels Calendar Dial aperture CASE Case material Stainless Steel Caseback Screwed in Water resistance 100 m (330 ft) Bezel Unidirectional, ratcheted Crown Non screw-locked, two gaskets Crystal Cambered sapphire, glareproofed both sides DIMENSIONS Product Weight (Approx.) 105.0 g. Watch-head Weight (Approx.) 49.6 g. Diameter 36.0 mm Thickness 10.0 mm Height (upper lug tip to lower lug tip) 43.3 mm Lug width (in-between lug) 18.0 mm STRAP Strap material Stainless Steel Strap color Metal Bracelet Strap type Straight Lug 18/16 mm