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Deal.ai › Casio › Mens Sport Watches
Casio
Casio G-Shock Mobile Link Analog Digital Black Dial Solar GA-B2100FC-1A 200M Men's Watch

Casio G-Shock Mobile Link Analog Digital Black Dial Solar GA-B2100FC-1A 200M Men's Watch

5(1 rating)

Best price now

$137.32at eBayObserved Nov 8, 2026, 6:45 PM

Compared across 10 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 $137.32 at eBay on Nov 8.
  • Checked at 10 stores.

Our take on the Casio G-Shock Mobile Link Analog Digital Black Dial Solar GA-B2100FC-1A 200M Men's Watch

The GA-B2100FC-1A is the solar and Bluetooth version of Casio's slim CasiOak line, with an analog-digital dial in a carbon-core resin case. It adds Tough Solar charging and a Bluetooth link to the phone app for automatic time sync and easy settings, which the original GA-2100 lacks. At about 45mm wide and 12mm thick on a 52g resin band, it wears lighter than most 200m G-Shocks. Buyers like the octagonal look, the solar power and the comfort; the mineral glass and basic resin finish are the main compromises against pricier metal CasiOaks.

Best forEveryday wear with a sporty lookSwimmers and outdoor use up to 200mBuyers who want a set-and-forget solar watchPeople who prefer analog hands with a digital display
Pros
  • Tough Solar charging cuts battery swaps
  • Bluetooth link keeps time synced to the phone
  • 200m water resistance and shock-resistant carbon core
  • Slim 12mm case and 52g weight wear easily
  • Analog-digital dial with backlight, alarms and world time
  • 38 time zones and annual calendar
Cons
  • Mineral glass scratches more easily than sapphire
  • Resin case and bezel show wear over time
  • Bluetooth features need the Casio app and a charged phone
  • Hands can obscure the small digital window at times
  • No sapphire crystal or metal case at this tier

Casio G-Shock Mobile Link Analog Digital Black Dial Solar GA-B2100FC-1A 200M Men's Watch prices at every store

  • eBayNew

    In stockSold by cb_watches

    $137.32Observed Nov 8, 2026, 6:45 PM
    Visit eBay
  • StockXNew

    In stock

    $140.00Observed Nov 8, 2026, 6:45 PM
    Visit StockX
  • CaptainBlingJewelersNew

    In stockReturn policy

    $150.00Observed Nov 8, 2026, 6:45 PM
    Visit CaptainBlingJewelers
  • WalmartNew

    In stockSold by BOOKSANDPENSReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $159.00Free shippingObserved Nov 8, 2026, 6:45 PM
    Visit Walmart
  • Vincent WatchNew

    In stockShips from Singapore · duties may apply

    $160.00Observed Nov 8, 2026, 6:45 PM
    Visit Vincent Watch
  • Scarce & CoNew

    In stock

    $182.00Observed Nov 8, 2026, 6:45 PM
    Visit Scarce & Co
  • NovelshipNew

    In stock

    $183.00Observed Nov 8, 2026, 6:45 PM
    Visit Novelship
  • Crown Jewelers NYCNew

    In stock

    $235.00Observed Nov 8, 2026, 6:45 PM
    Visit Crown Jewelers NYC
  • Urban Trend LuxuryNew

    In stock

    $303.99Observed Nov 8, 2026, 6:45 PM
    Visit Urban Trend Luxury
  • eBayPre-owned

    Availability unknownShips from Japan · duties may apply · 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.

    $195.74+ $36.00 shippingObserved Nov 8, 2026, 6:45 PM
    Visit eBay

Also available at

  • WalmartCheck price at Walmart

Store links may earn us a commission.

Casio G-Shock Mobile Link Analog Digital Black Dial Solar GA-B2100FC-1A 200M Men's Watch price history

Lowest price we've seen: $137.32 on Nov 8 at eBay. Tracked across 8 stores since Nov 8.

What reviewers say

Owners rate the GA-B2100FC-1A highly for its looks, solar power and comfort. Many call it a great everyday G-Shock and a strong value against the non-solar GA-2100. Complaints are few and mostly about the mineral glass and resin finish.

What people mention
  • DesignPraisedOwners like the slim octagonal case and the analog-digital dial.
  • Solar powerPraisedBuyers value never needing to replace a battery.
  • ComfortPraisedThe light 52g weight and resin band are called comfortable for daily wear.
  • Water resistancePraisedOwners trust the 200m rating for swimming and water sports.
  • GlassCriticisedSome say the mineral crystal picks up scratches with use.
  • Bluetooth appMixedTime sync works well, but some find pairing with the Casio app fiddly.

From eBay

  • Bluetooth mobile link
  • Solar-powered quartz movement
  • Shock-resistant
  • 200 m (20 ATM) water resistance
  • Analogue and digital display with 12-hour dial
  • Backlight, alarm, world time, annual calendar
Materials
Carbon fibre and resin case; resin band; mineral crystal
Fit
Two-piece strap; octagonal case 45.4 mm wide, 11.9 mm thick
Guarantee
Manufacturer warranty 2 years; seller warranty included
Returns
30 days returns; buyer pays return shipping, deducted from refund if an eBay shipping label is used
Shipping
US eBay SpeedPAK Standard from Hong Kong; import fees included; estimated delivery Nov 19–Nov 30
In the box
Original box, Papers, Manual/booklet

About the Casio G-Shock Mobile Link Analog Digital Black Dial Solar GA-B2100FC-1A 200M Men's Watch

Casio G-Shock Mobile Link Analog Digital Black Dial Solar GA-B2100FC-1A GAB2100FC-1 200M Men's Watch

What buyers say

Buyers like
  • Stylish looks
  • Solar powered
  • Waterproof
  • Bluetooth
  • Good value
  • Comfortable

Specifications

color
BlackSource
Country
Japan
Band Color
Gray
Band Material
Resin
Case Material
Resin
Case Size
Approximately 45mm (1.77 inches)
Case Thickness

Questions and answers

Is the GA-B2100FC-1A worth it over the standard GA-2100?
Yes, if you want solar charging and Bluetooth time sync. The GA-2100 is cheaper but runs on a battery and has no phone link.
Does it need a battery change?
No. Tough Solar charges from light through the dial, so it runs without routine battery swaps as long as it gets regular light.
Can I swim with it?
Yes. It is rated to 200 meters, which covers swimming, snorkeling and showering.
What does the Bluetooth link do?
It syncs the time to your phone, sets alarms and world time from the Casio Watches app, and corrects drift automatically.
How big is it on the wrist?
The case is about 45mm wide and 12mm thick, and the band fits wrists from 145 to 215mm. It wears lighter than most G-Shocks at 52g.
What is in the box?
The watch, original Casio box, papers and manual.
Where is the Casio G-Shock Mobile Link Analog Digital Black Dial Solar GA-B2100FC-1A 200M Men's Watch cheapest?
At eBay, for $137.32, as of our latest check.
What do buyers say about the Casio G-Shock Mobile Link Analog Digital Black Dial Solar GA-B2100FC-1A 200M Men's Watch?
Rated 5 out of 5 from 1 ratings. Buyers like: Stylish looks; Solar powered; Waterproof.
Where can I buy the Casio G-Shock Mobile Link Analog Digital Black Dial Solar GA-B2100FC-1A 200M Men's Watch?
9 stores we checked sell it, including eBay, CaptainBlingJewelers, Walmart, StockX, Vincent Watch.

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Stores we've priced the Casio G-Shock Mobile Link Analog Digital Black Dial Solar GA-B2100FC-1A 200M Men's Watch at

  • Crown Jewelers NYC deals and prices
  • Walmart deals and prices

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Approximately 12mm (0.47 inches)
Display
Analog-Digital
Indices
Index markers
Movement
Quartz
Style
Versatile
Water Resistance
200 meters
Country Of Origin
Japan
Weight
52 gSource
Case and bezel material
Carbon / ResinSource
Power supply
Tough Solar (Solar powered)Source
Smartphone link
Mobile link (Wireless linking using Bluetooth®)Source
Glass
Mineral GlassSource
Compatible band size
145 to 215 mmSource
Accuracy
±15 seconds per month (with no mobile link function)Source
World time
38 time zones (38 cities + coordinated universal time)Source