Breitling Navitimer B01 Chronograph 46 Reference number AB012721/C889 Serial Number 3203922 Warranty Valid until; 06/07/2022 Caliber Breitling 01 (Manufacture) Movement Self-winding mechanical Power reserve Approx. 70 hours Chronograph 1/4 second, 30 minutes, 12 hours Vibration 28,800 v.p.h Jewelry 47 jewels Calendar Dial aperture CASE Case material Stainless steel Case back Screw-down (sapphire crystal) Water resistance 3 bar Bezel Bidirectional, slide rule Crown crown Screwless, two seals Crystal Convex sapphire crystal, anti-glare on both sides DIMENSIONS Product Weight (Approx.) 120 g Weight per watch (Approx.) 103.95 g Diameter 46 mm Thickness 14.52 mm Height (top lug tip to bottom lug tip) 52.55 mm Lug width (between lugs) 24.05 mm STRAP Strap material After-market leather Strap color Blue Strap type Straight Lugs 24/20 mm Buckle material Stainless steel Buckle type Tang type Buckle size 20 mm Breitling box and papers