MOVEMENT Caliber Breitling B20 (Manufacture) Movement Selfwinding, high frequency Power reserve approx. 70 hrs Vibration 28,800 v.p.h Jewel 26 jewels Calendar Dial aperture CASE Case material Stainless Steel & 18k Red Gold Caseback Screwed in Water resistance 200 m (660 ft) Bezel Unidirectional, ratcheted Crown Screw-locked, two gaskets Crystal Cambered sapphire, glareproofed both sides DIMENSIONS Product Weight (Approx.) 142.0 g. Watch-head Weight (Approx.) 93.8 g. Diameter 42.0 mm Thickness 14.3 mm Height (upper lug tip to lower lug tip) 51.5 mm Lug width (in-between lug) 22.0 mm STRAP Strap material Rubber Strap color Black Strap type Straight Lug 22/20 mm Buckle Material Stainless Steel Buckle type Pushbutton folding clasp Buckle size 20 mm