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Casio
Casio G-Shock Watch - GA-B2100-3ADR Black Dial, Green Band

Casio G-Shock Watch - GA-B2100-3ADR Black Dial, Green Band

Best price now

$134.99at AmazonObserved Nov 8, 2026, 6:45 PM

42% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

  • Last seen at $134.99 at Amazon on Nov 8.
  • Checked at 4 stores.

Casio G-Shock Watch - GA-B2100-3ADR Black Dial, Green Band prices at every store

  • i-watchNew

    In stockReturn policy

    $231.00Observed Nov 8, 2026, 6:45 PM
    Visit i-watch
  • The Casio ShopNew

    In stockShips from South Africa · priced in ZAR (ZAR 3,994.00) · duties may applyReturn policy

    $241.50Observed Nov 8, 2026, 6:45 PM
    Visit The Casio Shop
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $134.99Free shippingObserved Nov 8, 2026, 6:45 PM
    Visit Amazon
  • CASIONew

    Out of stock

    $90.00Free shippingObserved Nov 8, 2026, 6:45 PM
    Visit CASIO

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

Casio G-Shock Watch - GA-B2100-3ADR Black Dial, Green Band price history

Lowest price we've seen: $90.00 on Nov 8 at CASIO. Tracked across 2 stores since Nov 8.

From i-watch

  • Sporty green resin case and band with black dial
  • Bluetooth connectivity to sync with smartphone for world time, reminders and phone finder
  • Tough Solar solar-powered charging
  • 200-meter water resistance and shock resistant
  • Carbon core guard structure for everyday durability
  • Double LED light, stopwatch, countdown timer and alarms
Materials
Case: resin; band: resin; glass: mineral glass
Fit
Case size 48.5 mm x 45.4 mm x 11.8 mm; weight 51 g

About the Casio G-Shock Watch - GA-B2100-3ADR Black Dial, Green Band

Sporty Style with GA-B2100-3ADR G-SHOCK

The GA-B2100-3ADR G-SHOCK is your ideal companion for expressing your passion for adventure and fashion. This watch is designed to enhance your lifestyle, whether you’re in the office, at the gym, or exploring the great outdoors.

Key Features:

- Sporty Aesthetic: Featuring a 48.5 mm x 45.4 mm resin case in an eye-catching green color, this watch not only adds a vibrant touch but also maintains a robust profile that suits any outfit.

- Reliable Timekeeping: With a precision of ±15 seconds per month, you can count on this watch to keep you punctual—an essential for anyone who values time.

- Ultimate Durability: Built with a carbon core guard structure, this watch is engineered to endure the challenges of everyday wear, providing peace of mind no matter where your activities lead you.

- Functional Elements: Featuring Bluetooth connectivity, you can easily sync your watch with your smartphone to access world time, reminders, and phone finder features.

- Water Resistance: With an impressive 200-meter water resistance rating, the GA-B2100-3ADR is perfect for those who dive into adventure without worrying about their gear.

Embrace your sense of style with the GA-B2100-3ADR, a watch that combines toughness and sporty flair to keep you prepared for any journey.

Specifications:

Case Size: 48.5 mm x 45.4 mm x 11.8 mm

Case Color: Green

Case Material: Resin

Band Color: Green

Band Material: Resin

Glass: Mineral Glass

Resistance: Shock Resistant and 200-meter water resistant

Power Source: Tough Solar (Solar powered)

Weight: 51g

Lighting: Double LED light

Features: Mobile link, world time, stopwatch, countdown timer, and alarms

Make a bold statement of confidence with the GA-B2100-3ADR, a watch that seamlessly balances sporty and stylish elements, allowing you to adapt your look for work or play while staying ready for every challenge ahead.

Questions and answers

Where is the Casio G-Shock Watch - GA-B2100-3ADR Black Dial, Green Band cheapest?
At Amazon, for $134.99, 42% under what the other stores charge, as of our latest check.
Where can I buy the Casio G-Shock Watch - GA-B2100-3ADR Black Dial, Green Band?
4 stores we checked sell it, including Amazon, i-watch, CASIO, The Casio Shop.

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Specifications

Case size
48.5 × 45.4 × 11.9 mmSource
Weight
52gSource
Water resistance
200-meter water resistanceSource
Battery operating time
7 months on rechargeable batterySource
Power save runtime
18 months on rechargeable batterySource
Accuracy
±15 seconds per month (with no mobile link function)Source
World time
38 time zones (38 cities + coordinated universal time)Source
Stopwatch
1/100-second stopwatchSource
Countdown timer
60 minutesSource
Alarms
5 daily alarmsSource
Case material
Carbon / ResinSource
Band material
Resin BandSource
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