Casio G-Steel GSTB400BB-1

Relish in the sophistication of this watch with the G-STEEL combination of metal and resin components to make up a dashing all-black G-SHOCK. Toughness meets style, just the statement piece that offers functionality and fashion. - 46.6 × 49.6 × 12.9mm Case Size - 80g Weight - Resin/Stainless steel Case and Bezel - Resin Band - Shock Resistant - Carbon Core Guard structure - 200 Meters Water Resistant - Tough Solar (Solar powered) - Smartphone Link/App Connectivity Features: Mobile link (Wireless linking using Bluetooth®) - Mineral Glass - Black ion plated case - World time: 38 time zones (38 cities + coordinated universal time), city code display, 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 - 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) Other features - 12/24-hour format - Date/month display swapping - Day display (days of the week selectable in six languages) - 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 (battery level, mode) Digital: Hour, minute, second, pm, month, date, day