2100 Black & Silver Watch GA-2100SB-1AER

The Watch

Best known for its calculators, Casio also crafts bold sport-inspired watches packed with innovative technology - built to keep up with every adventure. Meet the new 2100 Black & Silver GA-2100SB-1AER, with its eye-catching design. It features a black octagonal case made from resin, measuring 45.40 mm in diameter, 48.50 mm in length, and 11.80 mm in thickness. The bezel is signed G-Shock and Protection, with engraved labels indicating the functions of each pusher. All 4 pushers give you full control over the dial's time functions. The dial itself is protected by mineral glass. This watch weighs 51 grams and delivers 20 ATM water resistance, secured by a screw-back case.

The Dial

Perfectly designed for readability, this dial features a crisp silver base enhanced by a sunray finish that adds a brilliant touch. With analog display, the bezel ring frames a minute track alongside hour indices. Two gray hands sit at the center - the shorter marks the hours, the longer marks the minutes - both treated with a Neobrite coating for enhanced legibility in low-light conditions. At 9 o'clock, a day counter is displayed, while between 4 and 6 o'clock a digital window communicates multiple functions. The brand name and collection are signed off at 12 o'clock.

The Functions

LED Illumination
The watch dial is illuminated by an LED light.

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.

Stopwatch 1/100 s - 24 Hours
Measures elapsed time to 1/100th of a second accuracy, up to a maximum of 24 hours. An audible signal confirms the start and stop of the stopwatch.

Countdown Timers - 1/1 sec - 24 Hours
For the precision-minded: countdown timers remind you of important or recurring events with an audible alert at the set date and time. Time can be programmed in seconds, up to 24 hours in advance.

5 Daily Alarms
A daily audible alarm reminds you of your commitments at the set time. This model features five independent alarms so you can stay on top of all your important appointments with complete flexibility.

Hand Shift Function
This function moves the hands 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 longer an audible beep when switching between functions. However, any programmed alarms or countdown timers remain active after the button beep is turned off.

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

12/24-Hour Time Format
You can display the time in 12-hour or 24-hour format.

The Movement

This watch is powered by a quartz movement. Reliable and dependable, this mechanism delivers excellent hand accuracy and precise function performance. The only maintenance required is replacing the battery, which has a lifespan of 3 years.

The Strap

Flexible and durable, this strap delivers all-day wearing comfort. Its black tone pairs effortlessly with any outfit. Crafted from resin, it sits comfortably on your wrist and adjusts easily thanks to its tang buckle.

Water Resistance

This model offers a water resistance of 20 atmospheres, or 200 meters. Ladies and gentlemen, this is a watch built to go deep with you! Designed for freediving, it handles high-pressure water jets without missing a beat. Showering, bathing, swimming, and freediving - all covered. That said, for scuba diving, we recommend a timepiece with a higher water resistance rating. Also, avoid operating the crown or pushers while submerged to preserve the movement's integrity.