Features: Resin Case Bio-Based Resin Band Quartz Movement Caliber: 4012 Resin Crystal Grey Dial Digital Display Green LED Light 1/100 Second Stopwatch Day And Date Display Auto Calendar Daily Alarm Hourly Time Signal Regular Timekeeping 12/24 Hours Display Screwed Case Back Buckle Clasp 100M Water Resistance Approximate Case Size (L × W × H): 38.20 × 35.20 × 8.50 mm Approximate Case Diameter: 35.20 mm Approximate Case Thickness: 08.50 mm Approximate Lug Width: 11.00 mm