Case size (H× W× D): 49.6 × 43.2 × 12.9 mm Weight: 78 g Case / bezel material: Stainless steel resin case combined with stainless steel (The case is a combination of stainless steel and resin what the clock elegant, robust yet lightweight makes) Band: Resin Water resistance: 200-meter water resistance (Perfect for free diving without scuba gear: the watch is water resistant up to 20 bar according to ISO 22810) Mineral glass Shock-resistant: Shock-resistant construction protects against impact and vibration Magnetic resistant World time function Power supply and battery life: 3 years LED light Stopwatch function - 1/100 sec. - 1.000 hours Timer - 1/1 sec. - 24 hours 5 daily alarms Automatic calendar with date, day and month 12/24-hour format These limited-edition timepieces celebrate the G-SHOCK 40th through and through: the phrase "SINCE 1983" appears on the dial; the Eric Haze-designed 40th logo is engraved on the case back, and there are four stars for 40 on the band loop.