Casio G-SHOCK MUDMASTER GG-B100Y-1AJF Analog-Digital Watch
Casio G-SHOCK MUDMASTER GG-B100Y-1AJF Watch
The Casio G-SHOCK GG-B100Y-1AJF is a MASTER OF G — LAND MUDMASTER model with a rugged black and gray design accented in high-visibility yellow. It combines a battery-powered electronic quartz movement with Carbon Core Guard construction, mud resistance, shock resistance, and 200-meter water resistance.
The analog-digital display is protected by mineral glass, while the carbon-reinforced resin case features a layered bezel with carbon-fiber inserts. The resin band and reinforced caseback are designed for demanding outdoor use. Module 5594 provides a compass, altimeter, barometer, thermometer, step counter, Bluetooth smartphone connectivity, and additional timekeeping functions.
The watch connects with the CASIO WATCHES app for automatic time adjustment, Mission Log, location functions, altitude correction, calorie calculation, and display customization. Its 55.4 × 51.3 × 19.4 mm case weighs 92 g and uses a CR2025 battery with an approximate two-year life.
Key Features
Casio G-SHOCK MASTER OF G — LAND MUDMASTER
Exact reference: GG-B100Y-1AJF
Battery-powered electronic quartz movement with Module 5594
Carbon Core Guard construction with shock and mud resistance
Black and gray design with high-visibility yellow accents
Mineral glass and resin band
Quad Sensor functions with compass, altimeter, barometer, thermometer, and step counter
Bluetooth connection with the CASIO WATCHES app
20-bar / 200-meter water resistance
Specifications
Specification | Details |
Brand | Casio G-SHOCK |
Model / Reference | GG-B100Y-1AJF |
Collection / Series | MASTER OF G — LAND MUDMASTER |
Movement | Electronic quartz |
Caliber | Module 5594 |
Movement Type | Battery-powered |
Case Material | Carbon-reinforced resin |
Case Dimensions | 55.4 × 51.3 × 19.4 mm |
Case Thickness | 19.4 mm |
Crystal | Mineral glass |
Dial Details | Analog-digital display with black and gray design and yellow accents |
Caseback | Stainless-steel panel with glass-fiber-reinforced fine-resin cover |
Bezel | Layered fine-resin bezel with carbon-fiber inserts |
Bracelet / Strap | Resin band |
Water Resistance | 20 bar / 200 m |
Functions | Digital compass, altimeter, barometer, thermometer, step counter, Bluetooth smartphone link, world time, sunrise and sunset display, stopwatch, countdown timer, five daily alarms, Super Illuminator, full auto-calendar |
Battery | CR2025; approximately 2 years |
Weight | 92 g |
Other | Carbon Core Guard structure, shock resistance, mud resistance, CASIO WATCHES app compatibility |
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