The BG-169 series features a circular front shield that ensures protection against impacts, alongside practical functionalities like a water resistance of up to 200 meters. - 45.9 ?? 42.6 ?? 16.4mm Case Size- 43g Weight- Resin Band, Bezel and Case- Shock Resistant- 200 Meters Water Resistant - Approx. battery life: 3 years on CR1616- Mineral Glass- World time: 29 time zones (30 cities), daylight saving on/off- Stopwatch- Timer- Alarm/hourly time signal: 5 alarms (daily or one-time)- Calendar: Full auto-calendar (to year 2099)- Mute feature: Button operation tone on/off- Accuracy: ??30 seconds per month