18K rose gold automatic in-house caliber CFB T3000, COSC-certified chronometer, tourbillon, hour, minute, small seconds, seconds stop, round, 3atm, dial: silver index, alligator strap Metal Type: 18K rose gold Case Size: 43.1 mm Movement: automatic Function: hour, minutes, small seconds, tourbillon, stop seconds, COSC certified Water Resistant: 30 m Bracelet: alligator Buckle: 18K rose gold folding clasp