The Breitling TOP TIME B01 TRIUMPH is a high-performance timepiece that features the Breitling 01 self-winding mechanical movement. This mechanism ensures accurate timekeeping with a power reserve of up to 70 hours, and it can measure 1/4 second and 30 minutes with its chronograph. The stainless steel case is waterproof up to 10 bars, paired with a scratch-resistant sapphire crystal and fixed bezel. This elegant watch has a slim profile, with a lug width of 20mm and a total weight of 98g. It comes with a black calfskin leather strap and a stainless steel folding clasp buckle. TECHNICAL DATA MOVEMENT Caliber Breitling 01 (Manufacture) Movement Self-winding mechanical Power reserve Approx. 70 hrs Chronograph 1/4 second, 30 minutes Vibration 28,800 v.p.h Jewel 34 jewels CASE Case material Stainless steel Caseback Screwed in (sapphire crystal) Water resistance 10 bars i Bezel Fixed Crown Non screw-locked, two gaskets Crystal Sapphire DIMENSIONS Product Weight (Approx.) 98.0 g. Watch-head Weight (Approx.) 77.0 g. Diameter 41.0 mm Thickness 13.3 mm Height (upper lug tip to lower lug tip) 50.3 mm Lug width (in-between lug) 20.0 mm STRAP Strap material Calfskin leather Strap color Black Strap type Straight Lug 20/18 mm Buckle Material Stainless steel Buckle type Folding clasp Buckle size 18 mm