MOVEMENT Caliber Breitling B04 (Manufacture) Movement self-winding mechanical, 2nd timezone (24 hr) Power reserve approx. 70 hrs Chronograph 1/4th second, 30 minutes, 12 hours Vibration 28,800 v.p.h Jewel 47 jewels Calendar Dial aperture CASE Case material Stainless Steel Caseback Transparent sapphire crystal Water resistance 3 bars Bezel Bidirectional, slide rule Crown Non screw-locked, two gaskets Crystal Cambered sapphire, glareproofed both sides DIMENSIONS Watch-head Weight (Approx.) 117.4 g. Diameter 48.0 mm Thickness 15.7 mm Height (upper lug tip to lower lug tip) 55.5 mm Lug width (in-between lug) 24.0 mm STRAP Strap material Alligator Leather Strap color Brown Strap type Straight Lug 24/20 mm Buckle Material Stainless Steel Buckle type Tang-type Buckle size 20 mm