"Stainless Steel Case and Bracelet Water Resistant to 200 Meters (660 Feet) Day/Date Window at the 3 o'clock position Mineral Glass Crystal Eco Drive Solar Powered Technology so you never have to change a battery 180 Day Power Reserve when Fully Charged (46 Hours to fully charge under average lighting) Bracelet features a Fold Over Safety Clasp with Push Button Release 40mm Case Width (Approximately 1 1/2"")"