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Deal.ai › Casio
Casio
Casio G-Shock GA-2100RC-1AER

Casio G-Shock GA-2100RC-1AER

5(1 rating)

Best price now

$95.20at Gadgeticloud | Watches & GadgetsChecked Nov 11

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Price facts

  • Last seen at $95.20 at Gadgeticloud | Watches & Gadgets on Nov 11.

Our take on the Casio G-Shock GA-2100RC-1AER

The Casio G-Shock GA-2100RC-1AER is a slim analog-digital G-Shock in an all-black carbon-and-resin case. At 11.9 mm thick and 52 g, it wears much flatter and lighter than the chunky 5000-series squares and many other G-Shocks, while keeping the full shock resistance and 200-meter water resistance. It packs world time across 38 time zones, a 1/100-second stopwatch, a 60-minute countdown timer and alarms. It suits people who want a tough everyday watch that slips under a cuff, and it is the pick over a basic DW-5600 if you want analog hands and a slimmer profile.

Best forEveryday wear under a shirt cuffOutdoor and water useFans of analog-digital G-ShocksA first tough watch
Pros
  • Slim 11.9 mm case sits flat on the wrist
  • Light 52 g, easy to wear all day
  • Carbon Core Guard structure and shock resistance
  • 200-meter water resistance
  • Analog hands plus digital display with world time and stopwatch
Cons
  • All-black dial and hands are hard to read in low light
  • No solar charging or Bluetooth sync
  • Resin band and bezel show scuffs over time
  • Basic countdown timer tops out at 60 minutes

Casio G-Shock GA-2100RC-1AER prices at every store

  • Gadgeticloud | Watches & GadgetsNew

    In stockShips from Hong Kong SAR China · priced in GBP (£71.54) · duties may applyReturn policy

    $95.20Checked Nov 11
    Visit Gadgeticloud | Watches & Gadgets

What reviewers say

Owners of the GA-2100 line praise its slim, light case and the octagonal look, and treat it as a tough daily watch. Common complaints are weak legibility in dim light and the lack of solar or Bluetooth.

What people mention
  • LegibilityCriticisedOwners say the black hands and markers on the dark dial are hard to read in dim light.
  • Size and weightPraisedReviewers like how thin and light it feels compared with older G-Shocks.
  • BuildPraisedOwners report it takes knocks and water without trouble.
  • FeaturesMixedPeople value world time and the stopwatch but miss solar charging and Bluetooth.
  • Band and bezelCriticisedSome owners say the resin band and bezel show scuffs with daily wear.

About the Casio G-Shock GA-2100RC-1AER

The G-Shock GA-2100RC-1AER is an all-black digital and analog watch. It has a carbon and resin case and bezel and a resin band. The Carbon Core Guard structure makes it shock resistant, and it is water resistant to 200 meters.

Two hands show the hour and minute, and a digital display shows the hour, minute, second, pm, month, date and day. A hand shift feature moves the hands out of the way so the digital display is unobstructed. Double LED lights illuminate the face and the digital display in white.

It includes world time for 38 time zones, a 1/100-second stopwatch, a countdown timer, 5 daily alarms and an hourly time signal. The full auto-calendar runs to the year 2099. The watch runs on a rechargeable battery.

Model
GA-2100RC-1AER
Collection
G-SHOCK
Type
Digital + Analog
Color
Black (sub color black)
Case size
48.5 × 45.4 × 11.9 mm (L × W × H)
Weight
52 g
Case/bezel
Carbon / Resin
Band
Resin
Construction
Shock resistant; Carbon Core Guard structure
Water resistance
200 meters
Timekeeping
Analog: hour and minute hands (minute hand moves every 20 seconds), 1 dial for battery level and mode. Digital: hour, minute, second, pm, month, date, day
World time
38 time zones (38 cities + coordinated universal time), city code and city name display, daylight saving on/off, auto summer time (DST) switching, home city/world time city swapping

Questions and answers

How does it compare with the standard GA-2100?
It uses the same slim carbon case and module as the GA-2100 line. The difference is the colorway and finish, not the functions.
Is it good for swimming?
Yes. It is rated to 200 meters of water resistance, so swimming and showering are fine. It is not a dive computer.
Does it have solar charging or Bluetooth?
No. It runs on a standard battery and has no phone link. For solar and Bluetooth you need a higher G-Shock model.
How big does it wear?
The case is 48.5 by 45.4 mm and 11.9 mm thick, at 52 g. That is slim for a G-Shock but still a large watch on small wrists.
What is in the box?
The watch, a battery already fitted, and the usual paperwork. No charging cable is needed.
Can I read it at night?
It has an LED light, but the dark hands and markers stay low-contrast. Many owners find it harder to read than a positive LCD display.
Where is the Casio G-Shock GA-2100RC-1AER cheapest?
At Gadgeticloud | Watches & Gadgets, for $95.20, as of our latest check.
What do buyers say about the Casio G-Shock GA-2100RC-1AER?
Rated 5 out of 5 from 1 ratings.

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Stopwatch
1/100-second; elapsed time and lap/split time modes; 00'00''00 to 59'59''99 for the first 60 minutes, then 1:00'00 to 23:59'59
Timer
Countdown, 60-minute range; start time set from 1 second to 60 minutes in 1-second and 1-minute increments
Alarms
5 daily alarms; hourly time signal
Light
Double LED with Super Illuminator; face and digital display backlight; white; 1.5 or 3 seconds selectable illumination duration; afterglow
Calendar
Full auto-calendar (to year 2099)
Other features
Hand shift; 12/24-hour format; date/month display swapping; button operation tone on/off
Power saving
Display goes blank when the watch is left in the dark
Battery
Rechargeable; battery level indicator
Battery life
Approx. 7 months with normal use without exposure to light after charge; approx. 18 months when stored in total darkness with power save on after full charge
Accuracy
±15 seconds per month (with no mobile link function)
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