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Casio G-Shock Men's Black Resin Watch, Black Dial | Ga-2100su-1aer

Casio G-Shock Men's Black Resin Watch, Black Dial | Ga-2100su-1aer

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$121.00at i-watchChecked Nov 11

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Price facts

  • Last seen at $121.00 at i-watch on Nov 11.

Our take on the Casio G-Shock Men's Black Resin Watch, Black Dial | Ga-2100su-1aer

The Casio G-Shock GA-2100SU-1AER is a slim, octagonal analog-digital G-Shock with a carbon core guard case and black resin strap. It packs shock resistance, world time across 31 time zones, a 1/100-second stopwatch, a countdown timer and a double LED light. Its thin profile and understated black look make it easier to wear with everyday clothes than the chunky 5600-style squares, while keeping the same toughness. It suits people who want a durable daily watch that handles workouts and travel without looking like a piece of outdoor gear.

Best forEveryday wear with casual or work clothesGym, running and outdoor useTravelers crossing time zonesFirst G-Shock buyers who want a slimmer case
Pros
  • Carbon core guard case resists shocks
  • Slim octagonal profile sits flat on the wrist
  • World time across 31 time zones
  • 1/100-second stopwatch and countdown timer
  • Double LED light for low-light reading
  • Analog-digital layout is easy to scan
Cons
  • Resin strap and bezel can scuff over time
  • No solar charging or Bluetooth sync
  • Negative LCD subdial can be hard to read at angles
  • Hands can obscure the small digital display

Casio G-Shock Men's Black Resin Watch, Black Dial | Ga-2100su-1aer prices at every store

  • i-watchNew

    In stockReturn policy

    $121.00Checked Nov 11
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What reviewers say

Owners rate the GA-2100 line highly for its slim case, light weight and tough build. Many call it the most wearable G-Shock and a good everyday watch. Common complaints are the hard-to-read negative digital display and the lack of solar or Bluetooth.

What people mention
  • Size and fitPraisedOwners say the slim case sits flat and fits under sleeves better than bulkier G-Shocks.
  • BuildPraisedReviewers describe the carbon core case and resin as tough and shock resistant in daily use.
  • DisplayMixedThe analog hands are easy to read, but the negative LCD subdial draws complaints for low contrast.
  • FeaturesMixedWorld time, stopwatch and timer are useful, yet some wish for solar charging or Bluetooth.
  • StrapCriticisedA few owners report the resin strap scuffing and stiffening with wear.

About the Casio G-Shock Men's Black Resin Watch, Black Dial | Ga-2100su-1aer

The Casio G-Shock GA-2100SU-1AER is a men's analog watch with a black dial. It has a 49 mm x 45 mm case made of carbon and resin, and a black resin band. The case is 11.8 mm thick.

The watch is shock resistant and water resistant to 200 meters. World time covers 31 time zones. It also has a 1/100-second stopwatch and a countdown timer.

A double LED light has a selectable illumination duration. Other features include 5 daily alarms, a full auto-calendar to the year 2099, and a mute feature for the button operation tone.

Brand
Casio
Model
G-Shock GA-2100SU-1AER
Case size
49 mm x 45 mm
Case thickness
11.8 mm
Case material
Carbon and resin
Case color
Black
Band material
Resin
Band color
Black
Dial color
Black
Water resistance
200 meters
Movement
Analog
Accuracy
±15 seconds per month
Light
Double LED light with selectable illumination duration
World time
31 time zones
Stopwatch
1/100-second stopwatch

Questions and answers

Is the GA-2100SU-1AER good for everyday wear?
Yes. Its slim carbon case and light resin strap make it comfortable for daily use, and the black look works with casual and work clothes.
Does it have Bluetooth or solar charging?
No. This model runs on a standard battery and has no Bluetooth or solar. Time zones and timers are set with the buttons.
How does it compare with the classic square G-Shock?
The GA-2100 is slimmer and lighter than the square 5600 series, with analog hands plus a digital subdial. The square has a fully digital display that some find easier to read.
Is it waterproof enough for swimming?
It carries G-Shock's usual water resistance for everyday splashes and swimming. Casio does not rate it for deep diving.
What is in the box?
The watch with its resin strap, a display box and the user manual. No charging cable is needed.
Can the strap be swapped?
The strap uses standard G-Shock lugs and can be replaced with compatible resin or aftermarket straps.
Where is the Casio G-Shock Men's Black Resin Watch, Black Dial | Ga-2100su-1aer cheapest?
At i-watch, for $121.00, as of our latest check.

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Countdown timer
Alarms
5 daily alarms
Calendar
Full auto-calendar to year 2099
Other features
Shock resistant, mute feature for button operation tone
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