Casio G-SHOCK GM-2100B-4AJF Analog-Digital Red Dial Watch
Casio G-SHOCK GM-2100B-4AJF Analog-Digital Red Dial Watch
The Casio G-SHOCK 2100 Series GM-2100B-4AJF is a metal-covered analog-digital quartz watch distinguished by its octagonal profile, dark-gray bezel and metallic red dial. Released in Japan in August 2021, it combines the recognizable 2100 Series design with a stainless-steel exterior and practical G-SHOCK functionality.
A shock-resistant resin inner case sits beneath the ion-plated stainless-steel bezel, while mineral glass protects the analog-digital display. The watch is powered by Casio module 5611 and fitted with a textured black resin strap. Double LED illumination and a hand-shift function help keep the display legible.
Functions include world time, a 24-hour stopwatch, countdown timer, five daily alarms and a full auto-calendar through 2099. The watch also provides 20-bar water resistance and an estimated three-year battery life.
Key Features
Battery-powered analog-digital quartz movement with module 5611
Metallic red dial with a vapor-deposition finish
Dark-gray ion-plated stainless-steel bezel
Shock-resistant resin and stainless-steel construction
Mineral glass and textured black resin strap
Double LED Super Illuminator and hand-shift function
World time, stopwatch, countdown timer and five daily alarms
20-bar water resistance
Specifications
Specification | Details |
Brand | Casio |
Model / Reference | GM-2100B-4AJF |
Collection / Series | G-SHOCK 2100 Series, Metal Covered |
Movement | Casio module 5611 |
Movement Type | Battery-powered analog-digital quartz |
Case Material | Resin and stainless steel |
Case Dimensions | 49.3 × 44.4 mm |
Case Thickness | 11.8 mm |
Crystal | Mineral glass |
Dial Color | Metallic red |
Dial Details | Vapor-deposition finish; analog hands and digital LCD |
Bezel | Stainless steel with dark-gray ion plating and circumferential hairline finish |
Bracelet / Strap | Black resin strap with graduated square-pattern texture |
Water Resistance | 20 bar |
Functions | World time for 48 cities plus UTC, 1/100-second stopwatch, 24-hour countdown timer, five daily alarms, hourly time signal, full auto-calendar through 2099, hand shift, 12/24-hour display and button-tone control |
Battery | Two SR726W batteries; approximately three years |
Accuracy | ±15 seconds per month |
Illumination | Double LED Super Illuminator with selectable 1.5- or 3-second duration and afterglow |
Luminous Treatment | Neobrite |
Weight | 72 g |
Wrist Size | 145–215 mm |
Japanese Release | August 2021 |
International Buyers – Import Duties Notice:
Be informed that import duties, taxes, and charges are not included in the item price or shipping cost. These are the buyer's responsibility.
All items are shipped via EMS Japan post or DHL fully insured signed for delivery. I wrap items very well and post very fast most items are posted within 3 days of purchase
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