Gorgeous Handwork Around Amethyst Round Shape 925 Sterling Solid Silver Ring R3401857 122 Kenneth Cole ) 116 g Calibre Omega ) 116 g Calibre Omega 8800 Movement type Self winding Power reserve 55 hours Strap surface Alligator leather Strap underside Grained calf leather Minutes and Seconds Chronograph: Central Chronograph Seconds' Hand 30 Minute Counter at 3 o'clock Power Reserve: 48 Hours Frequency: 28'800 vib h (4 Hz) Jewels: 27 Jewels System: Semi Skeleton Column Wheel Chronograph Case Diameter: 44mm Height: 14mm Material: Black DLC Titanium and Black Ceramic Bezel: Black Ceramic Inner Ring: Green PVD Titanium Crown and Pushers: Green PVD Titanium Caseback: Transparent Smoked Sapphire Crystal Crystal: Sapphire with Anti Reflective Treatment Water resistance: 100m (10atm) Dial Dial: Gray Crystal with Black DLC and Green PVD Details Hands: Black DLC Skeleton and Green Chronograph Hands Strap Bracelet Strap: Honeycomb Rubber Clasp: Black DLC Titanium Deployment Buckle Limited Edition Individually Numbered Pieces Gender Unisex Origin Switzerland Metal: 925 Sterling Silver Available Size(s): 6