Adding a touch of colour to the classic and iconic stainless-steel bezel and design this timepiece GMB2100AD-2A. There is a fine resin component that has been installed in between the bezel and case, the three-pronged structure allows the shocks to be dispersed with ease to the bands connecting pipes. Delivering all the shock resistance of G-SHOCK in a full-metal timepiece. The case back is constructed with a screw lock structure to ensure a tight seal for extra security. - 49.8 × 44.4 × 12.8mm Case Size- 165g Weight- Stainless Steel Case, Band and Bezel- Solid Band: One-touch 3-fold Clasp- Shock Resistant- 200 Meters Water Resistant- Bluetooth: Connects to a smartphone and automatically adjusts the time- Tough Solar (Solar powered)- Mobile link (Wireless linking using Bluetooth®)- Approximately 300 world time cities- Mineral Glass- Back plate- Screw Lock Back- World time: 38 time zones (38 cities coordinated universal time), city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping- Stopwatch- Timer- Alarm/hourly time signal: 5 daily alarms- Hourly time signal- Light: Double LED light- Calendar: Full auto-calendar (to year 2099)- Mute feature: Button operation tone on/off- Energy saving feature: Power Saving (display goes blank to save power when the watch is left in the dark)- Battery display/alert: Battery level indicator- Approx. battery operating time:*7 months on rechargeable battery (operation period with normal use without exposure to light after charge)*18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)- Accuracy: ±15 seconds per month (with no mobile link function)- Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)- 12/24-hour format- Date/month display swapping- Day display (days of the week selectable in six languages)- Regular timekeeping:*Analog: 2 hands