Breitling Chronomat Automatic 36 Watch Victoria Beckham Stainless Steel Blue Dial Metal Bracelet - A103801A1C1A1Technical data: Caliber Breitling 10 Movement Self winding mechanical Power reserve Approx. 42 hours Vibration 28,800 v. p. h Jewel 25 jewels Calendar Dial aperture Case material Stainless steel Caseback Screwed in Water resistance 10 bars Bezel Unidirectional, ratcheted Crown Non screw locked, two gaskets Crystal Cambered sapphire, glareproofed both sides Product Weight (Approx.) 104 g Watch head weight (Approx.) 49. 6 g Diameter 36 mm Thickness 10.