Casio G-Shock Mudman watch, bio-based plastic, GDG-B100-1A5ER

Black and orange Casio G-Shock Mudman watch with a mud-resistant and shock-resistant bio-based plastic case and 200 m water resistance

The Mudman GDG-B100 is a mud-resistant and shock-resistant digital watch with an angular black case surrounded by bumper-style protectors. The case and strap are bio-based plastic, and the orange color of the strap stands out clearly against the black case. The case and strap carry the markings MUD RESIST and SHOCK RESIST. The case is 49.6 mm wide and 16.2 mm thick, so this is a large watch.

The accelerometer counts steps, distance, pace and calories burned, and the watch also has an interval timer and lap times. The Bluetooth connection checks the time from your phone and brings phone notifications to your wrist. The backlight is a red LED. Water resistance is 200 m / 20 atm, so the watch withstands swimming and water sports, but it is not intended for scuba diving. G-SHOCK's Triple 10 goal in 1983 already included 10 bar water resistance.

Product number: GDG-B100-1A5ER
Brand: Casio
Product group: Men's watches
Movement: Quartz (battery)
Battery: CR2032, lasts about 2 years
Features: Timing / Chronograph, digital display, alarm, world time, calendar
Display: MIP LCD
Backlight: Red LED
Crystal: Mineral crystal
Case material: Bio-based plastic, carbon fiber reinforced resin
Case color: Black
Dimensions: 63.6 × 49.6 × 16.2 mm
Weight: 66 g
Strap material: Bio-based plastic
Strap color: Orange
Strap length (wrist circumference): 145–215 mm
Water resistance: 200 m / 20 atm
World time: 38 time zones (38 cities + UTC)
Alarms: 4 daily alarms with snooze, vibration alarm, hourly time signal

Frequently asked questions

Can the watch be used for swimming and diving?
Water resistance is 200 m / 20 atm, so the watch is suitable for swimming, water sports, snorkeling and freediving. It is not suitable for scuba diving, because the watch does not carry a Diver's marking. Do not press the buttons underwater or while the watch is wet.

Does the watch need a battery?
The watch is a quartz watch, and its battery is a CR2032. The battery lasts about 2 years, and the watch has an automatic power saving mode.

Does the watch fit a small or large wrist?
The strap fits wrists with a circumference of 145–215 mm. The case is 63.6 × 49.6 mm and the watch weighs 66 g.

What does the phone connection do?
The Bluetooth connection works with the CASIO WATCHES app. It handles automatic time setting, brings phone notifications to the watch and helps you find your phone.