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Deal.ai › Casio › Wrist Watches
Casio
Casio G-Shock GM-B2100D-1AER

Casio G-Shock GM-B2100D-1AER

Best price now

$575.00at First Class WatchesChecked Nov 9

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Price facts

  • Last seen at $575.00 at First Class Watches on Nov 9.

Our take on the Casio G-Shock GM-B2100D-1AER

The Casio G-Shock GM-B2100D-1AER is a full-metal version of the popular 'CasiOak' GA-2100, combining a stainless steel case and bracelet with the octagonal bezel and analog-digital display. It adds Bluetooth connectivity, solar charging, and a world timer over the resin original, while keeping 200m water resistance and shock resistance. The watch is heavier and more expensive than the resin model, but offers a more premium look and advanced features. It suits those who want a rugged yet dressy watch with smart features and classic G-Shock toughness.

Best forFans of the CasiOak design wanting a metal upgradeThose who need a durable watch for outdoor activitiesPeople who prefer solar-powered watches with BluetoothWearers seeking a versatile watch for both casual and formal settings
Pros
  • Full stainless steel construction for a more upscale appearance
  • Solar charging eliminates the need for battery replacements
  • Bluetooth connectivity for automatic time adjustment and phone finder
  • 200m water resistance suitable for swimming and showering
  • Shock-resistant build typical of G-Shock
  • Analog-digital display with luminous hands for low-light visibility
Cons
  • Heavier than resin models at 5.82 oz (165g)
  • Mineral glass is more prone to scratches than sapphire
  • No atomic timekeeping; relies on Bluetooth for accuracy
  • Higher price point than the standard GA-2100
  • Some users find the stainless steel bracelet pulls hair

Casio G-Shock GM-B2100D-1AER prices at every store

  • First Class WatchesNew

    In stock

    $575.00Free shippingChecked Nov 9
    Visit First Class Watches

Store links may earn us a commission. Price via Klarna.

Casio G-Shock GM-B2100D-1AER price history

$575.00$575.00
Nov 8Nov 10

Lowest price we've seen: $575.00 on Nov 8 at First Class Watches. Tracked across 1 store since Nov 8.

What reviewers say

Reviewers praise the GM-B2100D for its solid build, attractive metal finish, and the convenience of solar charging and Bluetooth. Many appreciate the blend of classic G-Shock toughness with a more refined look. However, some criticize the weight and the lack of sapphire crystal at this price point.

What people mention
  • Build qualityPraisedOwners frequently commend the solid stainless steel construction and the premium feel it adds over resin models.
  • WeightMixedWhile some appreciate the heft, others find the watch too heavy for all-day wear, especially compared to the lighter GA-2100.
  • Solar chargingPraisedReviewers highlight the convenience of solar power, which reduces the need for battery changes and adds to the watch's durability.
  • Bluetooth connectivityPraisedThe Bluetooth feature is well-received for automatic time adjustment and easy pairing with the G-Shock app.
  • Glass durabilityCriticisedSome users report that the mineral glass is prone to scratches, which is a letdown at this price point.

About the Casio G-Shock GM-B2100D-1AER

A nice Casio watch which has black for its dial color. There's no problem with showering or swimming with it on.

Specifications

Color (Strap)
SilverSource
Closure
ClaspSource
Glass
MineralSource
Watch Strap Material
Stainless SteelSource
Gender

Questions and answers

Is the GM-B2100D worth it over the standard GA-2100?
It depends on your priorities. The GM-B2100D offers a more premium metal build, solar charging, and Bluetooth, but it is heavier and more expensive. If you value those upgrades, it's worth it; otherwise, the resin GA-2100 is a lighter, more affordable option.
How does the GM-B2100D compare to the GMW-B5000?
The GMW-B5000 is a full-metal square G-Shock with a digital display and sapphire crystal, while the GM-B2100D has an analog-digital display and mineral glass. The GMW-B5000 is more expensive and has a different aesthetic, but both offer Bluetooth and solar. The choice comes down to style preference.
Does the GM-B2100D have a sapphire crystal?
No, it uses mineral glass, which is more susceptible to scratches. Some competing models at similar prices offer sapphire, so this is a consideration if scratch resistance is a priority.
Can I swim with the GM-B2100D?
Yes, it has 200m water resistance (20 ATM), making it suitable for swimming, showering, and snorkeling, but not for diving.
What is included in the box?
The watch comes with a user manual, warranty card, and the stainless steel bracelet. Some retailers may include a tool for adjusting the bracelet, but it's not guaranteed.
How does the Bluetooth connectivity work?
The watch pairs with the G-Shock Connected app on your phone via Bluetooth. It automatically syncs the time, allows you to set alarms and world time, and includes a phone finder feature.
Where is the Casio G-Shock GM-B2100D-1AER cheapest?
At First Class Watches, for $575.00, as of our latest check.

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MaleSource
Series
Casio G-Shock GA-2100, Casio G-ShockSource
Case Color
SilverSource
Movement Type
QuartzSource
Type of Index
Index (without numbers)Source
Weight (oz)
5.82Source
Display Type
Digital, AnalogSource
Dial Color
BlackSource
Time Format
12 Hours, 24 HoursSource
Case Material
Stainless SteelSource
Water Protection
20 ATM (200m)Source