Casio G Shock Tough Solar Series GR 8900A 1D GR8900A 1D Sports Men's Watch Casio Mens Features: Rose Gold Tone Stainless T090.310.16.116.00 Features: Rose Gold Tone Stainless Steel Case Silicone Strap Quartz Movement Caliber: VD53 Sapphire Crystal Blue Dial Analog Display Chronograph Function Luminous Hands And Markers Date Display 12 24 Hours Display Uni Directional Rotating Bezel Pull Push Crown Solid Case Back Buckle Clasp 100M Water Resistance Approximate Case Diameter: 54mm Approximate Case Thickness: 14mm Features: Silicon Case Silicon Strap Quartz Movement Mineral Crystal Grey Dial Analog Display Pull Push Crown Solid Case Back Buckle Clasp 100M Water Resistance Approximate Case Diameter: 39mm Approximate Case Thickness: 9mm 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