Casio G-Shock GBM-2100-1AER Watch

The Watch

Casio is a Japanese brand renowned for its sport-inspired watch designs. Its models blend innovative features with distinctive aesthetics - a winning combination for enthusiasts. Today, Casio proudly presents the GBM-2100-1AER, a watch built to take on every adventure. Its case draws on the design concept of the very first G-SHOCK, featuring the iconic octagonal shape. Measuring 49.30 mm in length, 44.50 mm in width, 11.90 mm in thickness and weighing 72 g, it is crafted from glass fiber-reinforced resin paired with a stainless steel bezel. The bezel features an applied circular finish on the top surface and a mirror polish on the sides for a more brilliant look. A curved mineral crystal covers the dial. The four pushers positioned on either side of the case let you navigate through multiple functions - a real asset for athletes. Finally, the screw-locked caseback ensures water resistance to 20 ATM.

The Dial

The stunning dial of this watch features a round shape with a rich black tone. It incorporates an oblong grid pattern applied with a transparent print and a circular finish. Its grey, three-dimensional indices have been given a luminescent treatment, as have the hands, for readability in low-light environments. The sword-shaped hands indicate the hours and minutes. An LCD display shows additional data including the date and month. The counter positioned at 9 o'clock indicates several functions you'll rely on every day. A minute track runs along the perimeter for added precision. Finally, the brand's name appears at 12 o'clock as a signature.

Functions

Bluetooth® Smart

The watch features energy-efficient Bluetooth® technology that lets you sync data with a single button press. The Bluetooth® function wirelessly connects the watch to a smartphone, unlocking a wide range of convenient features.

Smartphone Time

"When the wall clock is paired with a smartphone, the time is set automatically and displays the current time anywhere in the world."

Super Illuminator

A single button press illuminates the dial in vibrant, on-trend colors.

Shock Resistance

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

Solar Power

Invisible solar cells inside the watch convert light into energy to power all functions. A rechargeable battery provides the capacity needed to keep the watch running in low-light conditions.

Neobrite Coating

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

World Time Function

The world time function displays local time across 29 different time zones.

Chronograph 1/100 s - 24 Hours

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

Countdown Timer - 1/1 sec - 24 Hours

For precision lovers: countdowns keep you on schedule by sounding an alert at the set date and time for important or recurring events. Time can be programmed in seconds, up to 24 hours in advance.

5 Daily Alarms

A audible alarm reminds you of your deadlines every day at the set time. This model features five independent alarms so you can stay on top of all your important appointments with total flexibility.

Day of the Week Display in Multiple Languages

The day is displayed in your choice of multiple languages.

Key Beep On/Off

The key beep can be turned off using the mode button. Once disabled, no beep will sound when switching between functions. However, any programmed alarms or countdowns remain active after the key beep is turned off.

Hand Shift Function

This function moves the hands out of the way when they obstruct the time, date, or chronograph display.

Find My Phone Function

Misplaced your smartphone? Just press a button on the watch and your phone will sound an alert.

Auto Calendar

Once programmed, the auto calendar always displays the correct date.

12/24-Hour Time Format

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

Battery Level Indicator

Displays the current battery level.

The Movement

This stunning watch is powered by a solar movement that drives the hands and modes with outstanding reliability and precision, delivering smooth analog and digital displays.

The Strap

This stunning model comes with a durable resin strap in black. Comfortable and rugged, it hugs the contours of your wrist with ease. Pair it with any outfit for a modern, athletic look. The pin buckle keeps it securely in place.

Water Resistance

With water resistance up to 200 meters - or 20 ATM in the precise language of watchmaking - this watch is built for shallow-water diving. That means it can handle the shower, the bath, the ocean, and the pool for casual snorkeling or freediving. For serious scuba diving, our Ocarat watch specialists have handpicked a selection of 30 ATM models available through an additional search on our site. One last reminder before you dive in: do not operate any pushers or the crown while underwater!