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Deal.ai › Casio › Wrist Watches
Casio
Casio G-Shock Caution Yellow Tough Solar B2100 Series GA Watch

Casio G-Shock Caution Yellow Tough Solar B2100 Series GA Watch

Best price now

$135.32at eBayChecked Nov 8

Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

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Price facts

  • Last seen at $135.32 at eBay on Nov 8.
  • Checked at 2 stores.

Our take on the Casio G-Shock Caution Yellow Tough Solar B2100 Series GA Watch

The Casio G-Shock GA-B2100 Tough Solar is a slim, analog-digital G-Shock that adds solar charging and Bluetooth to the popular 'CasiOak' design. It keeps the octagonal bezel and carbon core guard construction, making it more compact and wearable than many other G-Shocks. With 200-meter water resistance and a mineral glass crystal, it handles swimming and daily abuse. Reviewers like its blend of classic G-Shock toughness with modern connectivity, though some find the negative display hard to read in low light.

Best forFans of the CasiOak look who want solar powerPeople who want a tough watch for swimming and sportsBuyers who prefer analog hands with digital functionsThose who want Bluetooth time sync and phone finder
Pros
  • Tough solar charging reduces battery changes
  • Bluetooth connectivity for automatic time adjustment
  • Slim and lightweight compared to many G-Shocks
  • 200-meter water resistance and shock resistance
  • Analog-digital display with world time, stopwatch, timer, and alarms
Cons
  • Negative LCD can be hard to read in some lighting
  • Resin strap may feel stiff at first
  • No sapphire crystal, only mineral glass
  • Bluetooth features require the app and may drain phone battery

Casio G-Shock Caution Yellow Tough Solar B2100 Series GA Watch prices at every store

  • First Class WatchesNew

    In stock

    $175.00Free shippingChecked Nov 9
    Visit First Class Watches
  • eBayPre-owned

    Availability unknownSold by moose6092 (0% positive, 3 ratings)Made for another marketReturns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $89.99+ $6.36 shippingChecked Nov 8
    Visit eBay
  • eBayNew

    Availability unknownSold by usagi.imports (99.9% positive, 12,900 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $135.32Free shippingChecked Nov 8
    Visit eBay

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

Casio G-Shock Caution Yellow Tough Solar B2100 Series GA Watch price history

$175.00$175.00
Nov 8Nov 10

Lowest price we've seen: $175.00 on Nov 8 at First Class Watches. Tracked across 1 store since Nov 8.

What reviewers say

Owners praise the GA-B2100 for its comfortable size, solar charging, and Bluetooth timekeeping. Many appreciate the classic G-Shock durability with a more refined look. Some criticize the negative display's legibility and the stiffness of the resin strap.

What people mention
  • LegibilityCriticisedThe negative LCD is often described as difficult to read in dim conditions.
  • Solar chargingPraisedReviewers like not having to worry about battery changes.
  • ComfortPraisedMany find it lightweight and comfortable for all-day wear.
  • StrapMixedSome say the resin strap is stiff initially and attracts lint, though it softens over time.
  • BluetoothMixedUsers appreciate automatic time sync but note the app can be finicky and drains phone battery.

Specifications

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

Questions and answers

Is the GA-B2100 worth it over the standard GA-2100?
Yes, if you want solar charging and Bluetooth time sync. The GA-B2100 also has a slightly slimmer case and updated module. The standard GA-2100 is cheaper but lacks these features.
How does the negative display affect readability?
The negative LCD (light text on dark background) can be harder to read in low light compared to a positive display. Some users find it fine, but others struggle in dim conditions.
Does the watch have a countdown timer and stopwatch?
Yes, it has a 1/100-second stopwatch and a countdown timer, along with alarms and world time.
Can I swim with this watch?
Yes, it is water-resistant to 200 meters (20 ATM), suitable for swimming and snorkeling, but not for diving.
What is included in the box?
The watch, a user manual, and warranty information. No charging cable is needed due to solar power.
Where is the Casio G-Shock Caution Yellow Tough Solar B2100 Series GA Watch cheapest?
At eBay, for $135.32, as of our latest check.
Where can I buy the Casio G-Shock Caution Yellow Tough Solar B2100 Series GA Watch?
2 stores we checked sell it, including First Class Watches, eBay.

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Functions
Timer, Alarm, Bluetooth, Date, Worldtimer, StopwatchSource
Gender
MaleSource
Series
Casio G-ShockSource
Case Color
BlackSource
Movement Type
QuartzSource
Type of Index
Index (without numbers)Source
Display Type
AnalogSource
Dial Color
BlackSource
Time Format
12 Hours, 24 HoursSource
Case Material
ResinSource
Water Protection
20 ATM (200m)Source
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