Details: Movement: Chronograph Case Measurements: 48mm L x 48mm W Case Thickness: 11mm Crystal: Sapphire Coated Mineral Crown: Push/Pull w/ Function Pushers Strap: Genuine Leather Strap Measurements: 9-1/2" L x 24mm W Clasp: Push Button Dual Deployant Maximum Wrist Size: 8-1/2" Water Resistance: 10 ATM - 100 meters - 330 feet