The Casio G-Shock GA-2100-1A1DR is the all-black 'CasiOak': an analog-digital watch in an octagonal carbon-and-resin case. Its Carbon Core Guard structure and shock resistance make it tough, while the 11.8mm case and 51g weight keep it slim and light next to chunky G-Shocks. It has a 24-hour countdown timer, stopwatch with split times, day and date displays, and roughly three years of battery life. It suits people who want G-Shock durability in a low-key everyday watch, though the dark hands and markers on the black dial are hard to read in low light.
In stockShips from Hong Kong SAR China · priced in GBP (£73.42) · duties may applyReturn policy
Owners rate it highly and praise the slim, light case and the tough build. The most common complaint is legibility: the black hands and markers on the black dial are hard to read in low light.
The Casio G-Shock GA-2100-1A1DR is a shock-resistant analog-digital watch from the G-Shock collection. It uses a Carbon Core Guard structure for added durability, and the case and bezel are made of carbon and resin. The band is resin, and the watch is water resistant to 200 meters.
The display combines analog hands with a digital readout. The analog side has hour and minute hands and a day dial. The minute hand moves every 20 seconds. The digital side shows hour, minute, second, pm, month and date.
It includes a stopwatch that measures elapsed time, split time and 1st-2nd place times, and a countdown timer with a 24-hour range. It weighs 51 g and runs for about 3 years on two SR726W batteries.
