Tone on Tone Watch GA-2100-7A7ER

The Watch

Since releasing its first digital watch in 1974, Casio has never stopped pushing the boundaries of unique and timeless design. Its timepieces are a perfect showcase of its generational expertise and versatility. Available in multiple styles, Casio watches stand out for their elegance and practical functionality. Case in point: this stunning Tone on Tone Watch GA-2100-7A7ER, a signature piece from the G-Shock collection. Combining an urban design with practical features, it's crafted to elevate men's wrists. Its octagonal case, built from durable resin, measures 45.40 mm in width, 11.80 mm in thickness, and 48.50 mm in length. Finished in white, it features a flat mineral glass crystal over the dial. All functions are controlled via four push buttons on either side. The watch weighs 51 g and is water resistant to 20 ATM thanks to its screw-down case back.

The Dial

This stunning timepiece features a beautiful round dial in white, adding a cheerful, glamorous touch to your wrist. Its dual analog and digital display makes reading the time effortless. The centrally placed luminescent hands ensure readability even at night, pointing to baton indices and a minute track around the rim. At 9 o'clock sits a day counter, while the brand name is proudly displayed at 12 o'clock as its signature.

Features

LED Illumination

The watch dial is illuminated by an LED light.

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 continues to glow in the dark after the watch has been exposed to a light source.

World Time Function

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

1/100 sec Stopwatch - 24 Hours

Measures elapsed time to 1/100th of a second for a maximum duration of 24 hours. A beep tone confirms the start and stop of the stopwatch.

Countdown Timer - 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. Time can be programmed in seconds, up to 24 hours in advance.

5 Daily Alarms

A daily alarm reminds you of your deadlines at the programmed time. This model features five independent alarms so you can keep track of all your important appointments with complete flexibility.

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 countdowns, however, remain active after the button beep has been turned off.

Hand Shift Function

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

Auto Calendar

Once set, the auto 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 approx. 3 years.

The Movement

This beautiful watch runs on a Japanese-made quartz movement - a reliable and precise mechanism that ensures the hands and all integrated modes function flawlessly. It delivers a battery life of 3 years.

The Strap

This exceptional timepiece is fitted with a strap crafted from durable resin. Comfortable and endlessly stylish, it features a clean white tone that perfectly matches the rest of the watch. Adjust it to your wrist with ease using the white pin buckle. A must-have for every urban, ultra-chic look.

Water Resistance

With water resistance to 20 atmospheres - equivalent to 200 meters - this model is what you'd rightfully call a dive watch. Our watchmaking experts agree: while it's more than capable of handling showers, baths, lap swimming, free diving, and recreational scuba diving, it is not designed for extreme deep-sea diving, where the pressure would exceed its water resistance rating. For professional divers chasing serious depths, we recommend exploring our 30 ATM and above models. We also strongly advise against operating the push buttons or crown while submerged, to maintain a perfect seal at all times!