Go metal-clad with a gold-on-black G-SHOCK in a smaller, more compact profile. Finished in gold ion plating, the metal bezel says elegant luxe all the way. Buttons and buckle, also ion-plated in gold, are set against a black for a contrast that makes the metal truly shine. The luxury of gold paired with the strength of black in a shimmery beauty that is uniquely you Case / bezel material: Resin / Stainless steel Resin Band Shock Resistant Mineral Glass Gold ion plated bezel 200-meter water resistance Electro-luminescent backlight , Afterglow Flash alert Flashes with buzzer that sounds for alarms, hourly time signals 1/100-second stopwatch Measuring capacity: 00'00"00~59'59"99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, split time, 1st-2nd place times Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) Other: Auto-repeat Multi-function alarm Hourly time signal Full auto-calendar (to year 2099) 12/24-hour format Regular timekeeping: Hour, minute, second, pm, month, date, day Accuracy: ±15 seconds per month Approx. battery life: 2 years on CR1616 Size of case : 43.8 × 38.4 × 10.9 mm Total weight : 50 g