Utility Series Watch GA-2100BCE-1AER

The Watch

Casio has cemented its reputation since day one through feature-rich creations that are as useful as they are indispensable. The brand has never stopped pushing the boundaries of innovation - and this stunning G-Shock GA-2100BCE-1AER Watch is a perfect example, checking every box for toughness and technical excellence. Its octagonal black case is made from bio-based resin, measuring 45.40 mm wide, 11.80 mm thick, and 48.50 mm long. Designed for style-conscious men, it features a mineral crystal protecting the dial. Four pushers on either side of the case allow full function control. The screw-back case ensures a water resistance of 20 ATM on this 57 g timepiece.

The Dial

This striking model features a full black dial that strikes the perfect balance between elegance and essential timekeeping functions. Sword-shaped hands coated with Neobrite ensure legibility even at night, pointing to bold black indices as they track hours and minutes. A digital display also shows the time and additional functions. A day counter sits at 9 o'clock, while the brand's signature is printed at 12 o'clock.

The Functions:

LED Backlight

The watch dial is illuminated by an LED.

Shock Resistance

The shock-resistant structure protects the watch against impacts and vibrations.

Neobrite Coating

The hands and/or indices feature a fluorescent coating that keeps glowing in the dark after exposure to a light source.

World Time Function

The world time function displays the current time across 29 time zones and major cities worldwide.

Stopwatch 1/100 sec - 24 hours

Measures elapsed time to 1/100th of a second accuracy for up to 24 hours. An audible beep confirms when the stopwatch starts and stops.

Countdown Timers - 1/1 sec - 24 hours

For those who love precision: countdown timers alert you to important or recurring events with an audible signal at the set date and time. The timer can be programmed in seconds, up to 24 hours in advance.

5 Daily Alarms

A daily audible alarm reminds you of your commitments at your preset time. This model features five independent alarms so you never miss an important appointment.

Button Beep On/Off

The button beep can be turned off using the mode button. Once disabled, there is no beep when switching between functions. Any programmed alarms or countdown timers remain active even after the button beep is turned off.

Hand Shift Function

This function lets you move the hands when they obscure the time, date, or stopwatch display.

Hand Shift Function

This function lets you move the hands when they obscure the time, date, or stopwatch display.

Automatic Calendar

Once set, the automatic calendar always displays the correct date.

12/24-Hour Time Format

You can display the time in either 12-hour or 24-hour format.

3 years - 1 battery

The battery powers the watch for approximately 3 years.

The Movement

At the heart of this timepiece beats a high-performance quartz movement that drives the hands and all additional functions.

The Strap

You'll love this stunning black Cordura nylon strap - an eco-friendly fabric that delivers both comfort and style. It fits your wrist perfectly and pairs with any look. The clasp is a silver-tone tang buckle.

Water Resistance

With a water resistance of 20 atmospheres, equivalent to 200 meters, this model is what watchmaking professionals would confidently call a "dive watch." Our watch experts agree: while it handles showers, baths, lap swimming, free diving, and recreational scuba diving with ease, it is not designed for extreme deep-sea diving where pressure would exceed its limits. For professional divers tackling serious depths, we recommend exploring our 30 ATM and above models. We also advise against operating the pushers or crown while underwater to maintain full water resistance.