Casio G Shock Mudmaster Tough Solar 200M GSG 100 1A8 GSG100 1A8 Men's Watch Case 15mm screw down crown Function: hours and subtly creamy screw down crown Function: hours Features: Case Bezel Material: Ion Plated Stainless Steel Stainless Steel Bracelet Quartz Movement Mineral Crystal Black Dial Analog Display Regular Timekeeping Accuracy: ±20 Seconds Per Month Pull Push Crown Solid Case Back Deployment Clasp 30M Water Resistance Approximate Size Of Case: 30 x 23 Features: Case Bezel Material: Resin Stainless Steel Resin Strap Tough Solar Mineral Crystal Analog Digital Display Shock Resistant Mud Resistant Neobrite Double LED Light Afterglow World Time 31 Time Zones (48 Cities + UTC) 1 1000 Second Stopwatch Countdown Timer 5 Daily Alarms Hourly Time Signal Hand Shift Feature Battery Level Indicator Full Auto Calendar (To Year 2099) 12 24 Hour Format Button Operation Tone On Off Regular Timekeeping Accuracy: ±15 Seconds Per Month Day And Date Display Solid Case Back Buckle Clasp 200M Water Resistance Approximate Size Of Case: 56