Electric Quartz Plastic and Polyurethane Watch, Multi Color (Model: EW0110030106) Digital module with dual time, calendar, alarm, countdown timer, chronograph with 10 lap recall and light functions 10ATM/100 meters/300 ft. Quartz Movement Case Diameter: 40.64mm Water Resistant To 100m (330ft): In General, Suitable for Swimming and Snorkeling, but not Diving