Specifications Case / bezel: Ion platedGenuine Leather BandMineral Glass50-meter water resistance Day of the week wide displayDate displayRegular timekeeping Analog: 3 hands (hour, minute, second)Accuracy: ±20 seconds per monthApprox. battery life: 3 years on SR920SW Size of case / Total weightSize of case : 45×39.8×8.8mmTotal weight : 49g