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Casio

Casio G-Shock GA-2100-1AER

Price 143.99 USD excluding sales tax

The analog GA-2100 is among the lightest and smallest G-Shocks available, which has been achieved with the Carbon Core Guard. This allows the structural components to be reduced in size while achieving at least the same strength, probably better. These watches are extremely popular for a reason, and people modify them with custom accessories made by other manufacturers. It's a solid choice if you want an affordable G-Shock with an analog display.

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GA-2100 combines the simplicity and spirit of the first analog G-Shock, the AW500, with the octagonal "Casio Square" shape of the first ever G-Shock, the DW5000C. Despite drawing from Casio's own history, the GA-2100 bears a resemblance to another famous watch, which has led people to call this the CasiOak. The watch – like all Analog / Digital Casios – has a hand shift feature that reveals the display in case it's block o' clock. Just press Mode and Light together.

Decoding the name

The cryptic letter/number combination in Casio watch names (GA-2100-1AER) tells you about the watch type and its features. G = G-Shock, A = Analog.

The number in the middle (2100) tells you the watch series. The number in the 1AER suffix is the color code where 1 = Black. The letter after that is the "order number", in which A = First Wave. ER refers to the version made for the European market. The various regions are most often just packaged a bit differently, and the manual language varies.

Technical Specifications

Width: 45.4 mm (1.79")
Height: 48.5 mm (1.91")
Thickness: 11.8 mm (0.46")
Weight: 51 g (1.8 oz)
Battery / Life: 2 x SR726W / 3 years
Water Resistance: 20 BAR / 200 m
Made in China
Module: 5611

Features

Mineral Glass

Actual mineral glass with heat treatment to prevent scratches.

World Time

The world time function displays local times in 29 time zones.

Countdown Timer

The timer can be set with 1-second increments for up to 24 hours.

Stopwatch

Elapsed time, split time, and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 24 hours.

Alarm Clock

The daily alarm reminds you about recurring events with an acoustic signal at the time you have set. This model has 5 independent alarms for flexible reminders of important appointments.

Automatic calendar

You don't have to check the date setting of this watch each month: leap years, Februaries, and Biblical events are covered for a very long time – automagically.

Backlight

LED is used to illuminate the watch face. Furthermore, a luminous coating provides long-term illumination in the dark after only a short exposure to light.

Made by Casio

The first invention by Tadao Kashio was the yubiwa pipe: a ring that allows you to smoke a cigarette hands-free and all the way to the end. Tobacco was expensive in war-torn Japan (because WWII), and people had their hands full of work, so this was exactly what the market wanted. With the profits from the pipe, Kashio could fund the development of Casio's first electro-mechanical calculator.

High intelligence and flair for business combined with this sort of diligence could not have led to anything but the success Casio has achieved. The company has been the first mover too many times to mention. Let's skip the list this time.

Being the first mover has not sacrificed quality: many people still use Casio wristwatches they bought 40 years ago, and they have gained the trust of NASA, numerous special (and non-special) forces, law enforcement, paramedics, and so on. Another long list. The TL;DR is that all of these are damn good, pick any one you like!

All products: Casio

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