MOVEMENT Caliber Breitling 17 Movement self-winding mechanical Power reserve approx. 38 hrs Vibration 28,800 v.p.h Jewel 25 jewels CASE Case material Titanium Caseback Screwed in Water resistance 300 m (1,000 ft) Bezel Bidirectional Crown Screw-locked, two gaskets Crystal Convex sapphire crystal, glareproofed both sides DIMENSIONS Product Weight (Approx.) 140.0 g. Watch-head Weight (Approx.) 112.6 g. Diameter 48.0 mm Thickness 17.2 mm Height (upper lug tip to lower lug tip) 57.6 mm Lug width (in-between lug) 24.0 mm STRAP Strap material Rubber Strap color Black Strap type Straight Lug 24/20 mm Buckle Material Stainless Steel Buckle type Tang-type Buckle size 20 mm