Is the GA-100-1A4 worth it at $81.95?

Yes. That is a low price for a 200M water-resistant, shock-resistant G-Shock with analog and digital displays. Comparable G-Shock ana-digi models usually cost more.

How does it compare with the GA-100 base model?

It is the same X-Large G case and module 5081; the -1A4 refers to the black case with red accents. Features are identical, so pick on color and price.

Is it too big for a small wrist?

At 55 x 51.2 x 16.9 mm and 70g it is a large watch. It suits wrists roughly 7 inches and up; smaller wrists will find it overhangs.

Can I swim or dive with it?

Yes for swimming and snorkeling. The 200M rating covers recreational diving, but not saturation diving, and the buttons should not be pressed underwater.

The watch, a CR1220 battery already installed, and a manual. No charger or extra strap is included.

G-Shock prices dip during holiday sales and end-of-season clearances. The current $81.95 at My Gift Stop is already near the low end for this model.

Where is the Casio G-Shock GA-100-1A4 Men Watch cheapest?

At My Gift Stop, for $81.95, as of our latest check.

What do buyers say about the Casio G-Shock GA-100-1A4 Men Watch?

Rated 5 out of 5 from 1 ratings.

Where can I buy the Casio G-Shock GA-100-1A4 Men Watch?

2 stores we checked sell it, including My Gift Stop, eBay.

Casio G-Shock GA-100-1A4 Men Watch

Best price now

$81.95at My Gift StopObserved at 10:44 PM

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Our take on the Casio G-Shock GA-100-1A4 Men Watch

The GA-100-1A4 is Casio's X-Large G ana-digi watch: a 55 x 51.2 x 16.9 mm resin case with three analog hands plus digital windows, shock resistance, 200M water resistance and anti-magnetic construction. It runs on a CR1220 cell rated for about 2 years and weighs 70g. At $81.95 at My Gift Stop as of November 4, 2026, it sits well below the $100-$150 range this model usually sells for, and only two stores list it new.

What reviewers say

Owner feedback on the GA-100 line is generally positive, with buyers praising its toughness and legibility for the price. The main complaints are the size and the resin build.

Pros

Survives knocks and water without issue
Clear analog and digital readouts
Good value for a G-Shock

Cons

Bulky on smaller wrists
Resin strap wears over time
Battery replacement needed every couple of years

About the Casio G-Shock GA-100-1A4 Men Watch

Living up to G-Shock’s reputation for big case designs, comes a revolution in case size with the introduction of the X-Large G. This Ana-Digi, “three-eyed” monster measure in at a whopping 55 x 51.2 x 16.9mm size, with an attention to detail, that is second to none. Large anti-skid buttons provide easy operation, embossed indexes gives a 3-D look and a rivet bezel design adds strength to its overall appearance.

• Shock Resistant

• 200M Water Resistant

• Anti-Magnetic Structure

• 1/1000th Second Stopwatch with Speed Indicator

• Shock Resistant

• Magnetic Resistant

• 200 Meter Water Resistant

• Auto LED Light with Afterglow

• World Time 29 times zones (48 cities + UTC), daylight saving on/off, home city/world time swapping

• 4 Daily Alarms and 1 Snooze Alarm

• Hourly Time Signal

• 1/1000 Second Stopwatch Measuring capacity: 99:59'59.999" Measuring modes: Elapsed time, lap time, split time Others: Speed (0-1998 units/hour), Selection distance input (0.0-99.9)

• Countdown Timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) Other: Auto-repeat

• Full Auto-Calendar (pre-programmed until the year 2099)

• 12/24 Hour Formats

• Accuracy: +/- 15 seconds per month

• Battery: CR1220

• Approx. battery life: 2 years