The G-Shock Solar Bluetooth GMB2100GD-5A Full Metal Digital-Analogue Stainless Steel CasiOak is not to be missed! G-Shock has outdone itself with the construction of the G-Shock Solar Bluetooth GMB2100D-1A Full Metal Stainless Steel watch packed with features in a combined Digital-Analogue setting. The octagonal bezel and dimpled band bring us back to an era of excitement, when Casio released its first-ever G-Shock, this time with the addition of a full metal exterior, screw-back case, and a one-touch 3-fold clasp. In true G-Shock style, it’s incredibly tough and aesthetically brilliant with all the technology that's required of a timepiece. - 49.8×44.4×12.8mm Case Size - 165g Weight - Stainless Steel Band, Bezel and Case - 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®) - Mineral Glass - 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 - Double LED light - Calendar: Full auto-calendar (to year 2099) - Mute feature: Button operation tone on/off - Power Saving (display goes blank to save power when the watch is left in the dark) - 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)