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