Casio G Shock Tough Solar Series GR 8900A 1D GR8900A 1D Sports Men's Watch Case 15mm Features: Stainless Steel Case Stainless 1 Shoulder Strap 1 Features: Stainless Steel Case Stainless Steel Bracelet Quartz Movement Caliber: VD54 Sapphire Crystal Blue Dial Analog Display Chronograph Function Luminous Hands And Markers 12 24 Hours Display Pull Push Crown Solid Case Back Deployment Clasp 100M Water Resistance Approximate Case Diameter: 48mm Approximate Case Thickness: 12mm Features: Stainless Steel Case Stainless Steel Bracelet With Crystal Accents Quartz Movement Mineral Crystal White Silver Dial Crystals At Bezel Date Display Pull Push Crown Solid Case Back Deployment Clasp 30M Water Resistance Approximate Case Diameter: 36mm Approximate Case Thickness: 8mm Features: Resin Case Resin Band Mineral Glass Shock Resistant Solar powered LED Backlight Full auto light switch World time 31 time zones (48 cities + coordinated universal time) 1 100 second stopwatch Measuring capacity 2359'59 99'' Countdown timer 5 independent daily alarms (4 one time alarms and 1 snooze alarm) Hourly time signal Battery power indicator Power Saving Full auto calendar (to year 2099) 12 24 hour format Button operation tone on off Regular timekeeping Accuracy ±15 seconds per month 200 meter water resistance Size of case total weight 55