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Deal.ai › G-Shock › Wrist Watches
G-Shock
G-Shock GM-2100BB-1A

G-Shock GM-2100BB-1A

Best price now

$183.00at CreationWatchesChecked 11 h ago

27% under what the other stores charge

Compared across 5 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Last seen at $183.00 at CreationWatches on Nov 10.
  • Checked at 5 stores.

Our take on the G-Shock GM-2100BB-1A

The GM-2100BB-1A is the all-black version of G-Shock's metal-covered 2100 series, a slim octagonal watch with analog hands over a small digital display. It pairs a stainless steel bezel with a resin case and strap, weighs about 2.5 oz, and is water resistant to 200 m. It suits people who want the CasiOak look in a stealthy finish without paying for a full metal build. Against the resin GA-2100 it adds the steel bezel and a slightly heavier feel; against the full-metal GM-B2100 it is lighter and less expensive in feel, with a mineral crystal instead of sapphire.

Best forEveryday wear with casual or streetwear outfitsBuyers who want the octagonal CasiOak look in all blackSwimmers and outdoor users needing 200 m water resistancePeople who prefer analog hands plus a digital readout
Pros
  • Slim case for a G-Shock, comfortable on most wrists
  • Stainless steel bezel gives a more premium look than the resin GA-2100
  • 200 m water resistance and shock-resistant construction
  • Analog hands with a small digital window for date, timer and world time
  • Light at about 2.5 oz despite the metal bezel
  • Hands and markers are legible in daylight
Cons
  • All-black dial and hands are hard to read in low light
  • Mineral glass scratches more easily than sapphire
  • Digital display is small and dim compared with full digital G-Shocks
  • Negative LCD makes the digital readout low contrast
  • Resin strap feels basic next to the metal case

G-Shock GM-2100BB-1A prices at every store

  • CreationWatchesNew

    In stock

    $183.00Free shippingChecked 11 h ago
    Visit CreationWatches
  • ZalesNew

    In stock

    $250.00Free shippingChecked 11 h ago
    Visit Zales
  • Kay JewelersNew

    In stock

    $250.00Free shippingChecked 11 h ago
    Visit Kay Jewelers
  • JaredNew

    In stock

    $250.00Free shippingChecked 11 h ago
    Visit Jared
  • CASIONew

    In stock

    $250.00Free shippingChecked 11 h ago
    Visit CASIO

Store links may earn us a commission. Some prices via Klarna.

G-Shock GM-2100BB-1A price history

Lowest price we've seen: $183.00 on Nov 11 at CreationWatches. Tracked across 5 stores since Nov 11.

What reviewers say

Owners of the GM-2100 line like the slim octagonal case and the metal bezel, and many call it the best-looking G-Shock for daily wear. Common complaints are the dark dial's legibility and the small, low-contrast digital window.

What people mention
  • LegibilityCriticisedOwners say the blacked-out dial and hands are difficult to read in low light.
  • BuildPraisedThe stainless steel bezel and shock-resistant case feel solid for the weight.
  • SizePraisedReviewers like the slim case, which sits flatter on the wrist than most G-Shocks.
  • Digital displayMixedThe small negative LCD is useful for date and timer but dim and low contrast.
  • StrapMixedThe resin strap is comfortable but feels basic next to the metal bezel.
  • GlassCriticisedSome owners report scratches on the mineral crystal with regular wear.

About the G-Shock GM-2100BB-1A

The G-Shock GM-2100BB-1A is a men's quartz watch from the Casio G-Shock series. It has a black dial with index markers without numbers, and it shows the time on both an analog and a digital display.

The case is made of resin and stainless steel, and the glass is mineral. The black resin strap closes with a buckle. The watch is water resistant to 20 ATM (200 m).

Functions include a timer, alarm, date, world time, stopwatch and display light. The time can be shown in a 12-hour or 24-hour format.

Series
Casio G-Shock
Movement
Quartz
Display
Digital and analog
Case material
Resin, stainless steel
Glass
Mineral
Strap
Black resin with buckle closure
Dial color
Black
Water resistance
20 ATM (200 m)
Time format
12 hours, 24 hours
Weight
2.5 oz

Specifications

Color (Strap)
BlackSource
Closure
BuckleSource
Glass
MineralSource
Watch Strap Material
ResinSource

Questions and answers

How does the GM-2100BB-1A differ from the GA-2100?
It adds a stainless steel bezel and a slightly heavier, more premium feel. The GA-2100 is all resin and lighter.
Is it worth it over the full-metal GM-B2100?
The GM-B2100 has a full steel case and sapphire glass. The GM-2100BB-1A is lighter and keeps the same octagonal look with a steel bezel and mineral glass.
Can you swim with it?
Yes. It is rated to 20 ATM (200 m), which covers swimming and snorkeling. It is not a dive computer.
Does it have Bluetooth or solar power?
No. It runs on a standard quartz battery and has no Bluetooth or Tough Solar. Timekeeping is set manually.
What functions does the digital display offer?
Stopwatch, countdown timer, alarms, world time, date and a display light. The analog hands show the time.
How big is it on the wrist?
The case is slim for a G-Shock and weighs about 2.5 oz, so it fits most wrists without overhang.
Where is the G-Shock GM-2100BB-1A cheapest?
At CreationWatches, for $183.00, 27% under what the other stores charge, as of our latest check.
Where can I buy the G-Shock GM-2100BB-1A?
5 stores we checked sell it, including CreationWatches, Zales, Kay Jewelers, Jared, CASIO.

Stores we've priced the G-Shock GM-2100BB-1A at

  • Kay Jewelers deals and prices
  • Zales deals and prices

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Functions
Timer, Alarm, Date, Worldtimer, Stopwatch, Display LightSource
Gender
MaleSource
Series
Casio G-ShockSource
Case Color
BlackSource
Weight (oz)
2.5Source
Movement Type
QuartzSource
Type of Index
Index (without numbers)Source
Display Type
Digital, AnalogSource
Dial Color
BlackSource
Time Format
12 Hours, 24 HoursSource
Case Material
Resin, Stainless SteelSource
Water Protection
20 ATM (200m)Source
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