Number of Pieces: 1. Removable Links: No. Closure Style: Buckle. Display Style: Digital Time Display. Display Indicators: Alarm, Day/Date Function, Stopwatch. Watch Face Color: Gray. Case Material: Plastic. Crystal Material: Mineral. Band Material: Plastic. Finish: Polished. Clock Movement Type: Quartz. Power Source: Battery-Powered. Depth of Water Resistance: Up to 50 meters. Care and Cleaning: Wipe Clean With a Dry Cloth. Case Dimensions: 0.98 " L x 0.98 " W. Case Diameter: 25.0 mm. Weight: 0.3 Lb. Warranty Description: 1 Year Limited Manufacturer Warranty. Battery: Required, included: 1 lithium CR1216.