Metal-clad daring meets sophisticated gleam in this Casio G-Shock that delivers Smartphone Link via Bluetooth® and Tough Solar charging system, all in a meticulously finished metal design with iconic octagonal bezel. This model features a black dial that is complemented by a black band made of environmentally responsible bio-based resin. Welcome to a whole new level of metal-clad 2100 functionality — tough construction and stylish design in a timepiece that takes you from casual settings to business meetings without a thought. Case size (L× W× H): 49.3 × 44.4 × 11.9 mmCase and bezel material: Resin (Bio-based) / Stainless steelShock ResistantTough Solar (Solar powered)Black Bio-based resin band200-meter water resistanceMobile link (Wireless linking using Bluetooth®)Mineral GlassWorld time: 38 time zones (38 cities + coordinated universal time), auto summer time (DST) switching, home city/world time city swapping1/100-second stopwatchCountdown timer5 daily alarmsHourly time signalDouble LED lightLED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)Full auto-calendar (to year 2099)Mute feature: Button operation tone on/offPower Saving (display goes blank to save power when the watch is left in the dark)Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)12/24-hour formatDate/month display swappingDay display (days of the week selectable in six languages)Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode); Digital: Hour, minute, second, pm, month, date, dayG-Shock Style #: GBM2100-1A