Go sleek, sharp and bold with the new black band and silver stainless steel bezel GM2100-1A in a metal-clad octagonal take on the original iconic design. Forged in stainless steel with rounded hairline finish, the strong bezel says super style all the way. The dial is treated with vapor deposition finish for a meticulously detailed metallic look that suits a classic metal G-SHOCK timepiece. Incremental variations in the detailed square dot texturing on the wristband take casual urethane materials up a notch. KEY FEATURES Approx. battery life: 3 years on SR726W × 2 Size of case : 49.3×44.4×11.8mm Total weight : 72g Case / bezel material: Resin Case / bezel material: Resin / Stainless steel Resin Band Neobrite Shock Resistant Mineral Glass Case / bezel material: Resin Case / bezel material: Resin / Stainless steel Resin Band Neobrite Shock Resistant Mineral Glass 200-meter water resistance Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) World time 31 time zones (48 cities + coordinated universal time), daylight saving on/off 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) 5 daily alarms Hourly time signal Hand shift feature Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off Regular timekeeping Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day) Digital: Hour, minute, second, pm, month, date Accuracy: ±15 seconds per month Approx. battery life: 3 years on SR726W × 2 Size of case : 49.3×44.4×11.8mm Total weight : 72g