Casio G-SHOCK 2100 Series GA-2100-1A1JF Analog-Digital Watch
Casio G-SHOCK 2100 Series GA-2100-1A1JF Analog-Digital Watch
The Casio G-SHOCK GA-2100-1A1JF is an all-black analog-digital watch from the G-SHOCK 2100 Series. Released in Japan in 2019, this model combines the collection’s distinctive octagonal bezel with a slim 11.8 mm profile and G-SHOCK shock-resistant construction.
The watch uses a quartz movement with Casio Module 5611, a carbon-fiber-reinforced resin case, resin bezel, resin band and inorganic glass. Its black dial combines analog hands with a digital display, while functions include world time, stopwatch, countdown timer, five daily alarms, full auto-calendar and double LED lighting.
The Carbon Core Guard Structure protects the module while keeping the case relatively light at 51 g. The watch is rated to 20 bar water resistance and uses two SR726W batteries, with an approximate battery life of three years.
Key Features
Quartz analog-digital movement with Casio Module 5611
Carbon Core Guard Structure with shock-resistant construction
Carbon-fiber-reinforced resin case and resin bezel
Black analog-digital dial with hand-shift function
Inorganic glass and resin band
20-bar water resistance
World time, stopwatch, countdown timer and five daily alarms
Double LED light with selectable 1.5- or 3-second illumination
Specifications
Specification | Details |
Brand | Casio |
Model / Reference | GA-2100-1A1JF |
Collection / Series | G-SHOCK 2100 Series |
Movement | Casio Module 5611 |
Caliber | 5611 |
Movement Type | Quartz analog-digital |
Case Material | Carbon-fiber-reinforced resin |
Case Size | 48.5 × 45.4 × 11.8 mm |
Crystal | Inorganic glass |
Dial Color | Black |
Dial Details | Analog-digital display with black hands and indices |
Bezel | Resin octagonal bezel |
Bracelet / Strap | Resin band |
Water Resistance | 20 bar |
Functions | World time for 48 cities and 31 time zones plus UTC; 1/100-second stopwatch; 24-hour countdown timer; five daily alarms; hourly time signal; full auto-calendar; double LED light; hand-shift function |
Battery | SR726W × 2; approximate battery life of 3 years |
Other | Shock Resistant; Carbon Core Guard Structure; 12/24-hour format; button-operation tone on/off |
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