Casio G-SHOCK GM-2100BB-1AJF Metal-Covered Black Watch
Casio G-SHOCK GM-2100BB-1AJF Metal-Covered Black Watch
The Casio G-SHOCK GM-2100BB-1AJF is a Japanese-market 2100 Series Metal Covered watch with an all-black analog-digital design. Its distinctive octagonal profile combines G-SHOCK shock resistance with a stainless-steel bezel finished in black ion plating.
Casio Module 5611 provides quartz accuracy of ±15 seconds per month, world time, stopwatch, countdown timer, five daily alarms and a hand-shift function. The black dial includes a negative digital display, while double LED illumination improves visibility. A mineral crystal protects the display, and the resin case is fitted with a black resin band.
The case measures 49.3 × 44.4 × 11.8 mm and weighs 72 g. Water resistance is rated to 200 metres, and the two-battery power system offers an approximate three-year battery life.
Key Features
Casio quartz analog-digital Module 5611
Resin case with a black ion-plated stainless-steel bezel
Black dial with negative digital display
Shock-resistant construction and mineral crystal
200-metre water resistance
World time, stopwatch, countdown timer and five daily alarms
Hand-shift function and double LED Super Illuminator
Black resin band for wrists measuring 145–215 mm
Specifications
Specification | Details |
Brand | Casio |
Model / Reference | GM-2100BB-1AJF |
Collection / Series | G-SHOCK 2100 Series, Metal Covered |
Movement | Casio Module 5611 |
Movement Type | Battery-powered quartz, analog-digital |
Case Material | Resin |
Case Thickness | 11.8 mm |
Crystal | Mineral glass |
Dial Color | Black |
Dial Details | Analog display with negative digital display and double LED illumination |
Bezel | Stainless steel with black ion plating |
Bracelet / Strap | Black resin band; suitable for wrists measuring 145–215 mm |
Clasp / Buckle | Pin buckle |
Water Resistance | 200 metres / 20 bar |
Functions | World time, 1/100-second stopwatch, 24-hour countdown timer, five daily alarms, hourly time signal, hand shift, full auto-calendar, 12/24-hour format and button-tone control |
Battery | Two SR726W batteries; approximately three years |
Other | Case dimensions: 49.3 × 44.4 × 11.8 mm; weight: 72 g; accuracy: ±15 seconds per month; shock-resistant construction; Neobrite |
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