This stealthy, all black timepiece embeds the latest carbon core guard technology in a slimmer more refined case. Taking inspiration from the 1983 original model, the DW-5000C, this watch pays homage to the much loved retro look with its unique octagonal bezel, framing a dual display. As with the GA-2000, the GA-2100 has an interchangeable resin strap for customisation with any outfit and occasion. Despite its deceptively compact design, this watch is as durable and tough as any G-SHOCK on offer with 200 meter water resistance and shock resistance. Accuracy +/- 15 seconds per month Alarm function Hourly time signal: The watch beeps every hour on the hour Automatic calendar Once set, the automatic calendar always displays the correct date. Battery level indicator An indicator shows the current battery level. Bluetooth Connectivity Connect to compatible smartphones for a range of features Core guard structure Four stainless steel pipes form a metal frame that joins the bezel securely with the case back for increased shock resistance Countdown timer Date and weekday display Display illumination Auto Light: The watch dial will illuminate automatically when you tilt your wrist towards you. Once activated, this feature will automatically deactivate after six hours. LED light selectable illumination duration (1.5 seconds or 3 seconds) Hand shift function With a push of a button, hands move away to permit free visibility. Mute function The button tones on the mode button can be switched off for discreet operation. Pre-set alarm or timer functions remain active. Neobrite A luminous coating on the watch hands provides illumination in the dark. Stopwatch function World time function Displays the current time in major cities and specific areas around the world Total Weight 51g Case Depth 11.8mm Case Width 45.4mm Watch Movement Quartz Water Resistance 200 metres