The G-Shock GM2100G-1A9 Stay Gold 'CasiOak'. This timepiece combines resilience and style with a resin/stainless steel case and bezel, offering shock resistance and water resistance up to 200 meters. Powered by dual SR726W batteries with a lifespan of approximately 3 years, it ensures long-lasting performance. The watch features world time functionality with 31 time zones, a stopwatch, timer, and 5 daily alarms for added convenience. Equipped with double LED lights, full auto-calendar, and a mute feature, it offers versatility for various settings. With ±15 seconds per month accuracy and hand shift feature for unobstructed view, it delivers precise timekeeping. The analogue hands and digital display provide comprehensive time and date information, making it a reliable companion for daily wear. - 49.3 × 44.4 × 11.8mm Case Size - 72g Weight - Resin/Stainless steel Case and Bezel - Resin Band - Shock Resistant - 200 Meters Water Resistant - Approx. battery life: 3 years on SR726W X 2 - Mineral Glass - World time: 31 time zones (48 cities + coordinated universal time), daylight saving on/off - Stopwatch - Timer - Alarm/hourly time signal: 5 daily alarms - Double LED light - Calendar: Full auto-calendar (to year 2099) - Mute feature: Button operation tone on/off - Accuracy: ±15 seconds per month - 12/24-hour format - Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.) - Regular timekeeping: *Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day) *Digital: Hour, minute, second, pm, month, date