Tone on Tone Watch GMA-P2100 GMA-P2100-4AER

The Watch

Since 1946, the iconic Japanese brand Casio has taken genuine pleasure in crafting original timepieces defined by exceptional design. Every creation balances technical performance with aesthetic beauty, delivering watches that are as good-looking as they are high-quality. Globally recognized in the watchmaking world, Casio continues to produce robust models for both men and women. Among its lineup is this stunning Tone on Tone Watch GMA-P2100-4AER. It features a red case crafted from durable resin for lasting resilience. Octagonal in shape, it measures 40.20 mm in width, 46 mm in length, and 11.20 mm in thickness. The case weighs 40 g and is topped by a mineral glass crystal that provides a clear view of the dial. Four push buttons on either side of the case give you access to all the model's functions. Finally, the case back ensures water resistance to 20 ATM.

The Dial

The round dial on this watch sports a bold red color in perfect harmony with the overall aesthetic. Two central hands sweep to indicate the hours and minutes, finished with a luminescent treatment for easy readability in low-light conditions. Indices and a minute track on the bezel complete the time display. For the digital display, a screen positioned between 3 and 6 o'clock reveals multiple functions including the alarm, stopwatch, and more.

Features

Super Illuminator

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

Shock Resistance

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

World Time Function

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

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.

Hand Shift Function

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

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.

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.

The Movement

This watch is powered by a Japanese-made quartz movement that reliably drives both analog and digital displays at all times.

The Strap

This timepiece features a strap crafted from durable resin. Its bold red color adds a striking touch to your wrist in any setting, while its texture ensures all-day comfort. The strap fastens with a silver pin buckle that's easy to use.

Water Resistance

With water resistance to 200 meters - or 20 ATM in the precise language of watchmaking - this watch is built for recreational diving. It can handle showers, baths, ocean swimming, and pool use, including shallow recreational dives (free diving). For serious scuba diving, our experts have handpicked 30 ATM models available in our catalog - just run a quick search on the site. One last reminder before we let you go: never operate the push buttons or crown while in the water!