Breitling stainless steel watchStyle no AB0121211B1A1FasteningStainless steel and 18ct red-gold case; Breitling 01 caliber; self-winding mechanical movement; power reserve approx. 70 hours, 1/4th second, 20 minutes, 12 hours chronograph; 28,800 v.p.h vibration; 47 jewels; dial aperture calendar; screwed-in sapphire crystal caseback; bidirectional, slide-rule bezel, non-screw-locked crown; two gaskets; glareproofed, cambered sapphire crystal, bracelet strapCase diameter 43mmWater-resistant to 30m/3 bars