Casio

Since entering the watch market in 1974, Casio has revolutionized digital timekeeping with their innovative approach to functionality and durability. Their G-Shock line, introduced in 1983, redefined shock-resistant watches and has become a cultural icon. The brand's Edifice collection brings sophisticated analog-digital technology to motorsports timing, while their Pro Trek series offers advanced environmental sensors for outdoor enthusiasts. Through their constant innovation in digital technology, solar power, and radio-controlled timekeeping, Casio continues to push the boundaries of what a watch can achieve.


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Current Listings

[WTS] Casio MR-G MRG-B2100 Series

Casio MR-G MRG-B2100 Series

Casio - MRGB2100R-2A · $2,675
This MR-G MRG-B2100 is a high-end G-Shock that blends iconic design with premium materials and finishing, suitable for collectors looking for a modern watch with everyday usability.

  • Condition: superb condition
  • Box included: true
  • Original booklets included: true
  • Warranty card included (unstamped): true
Posted at
Apr 29, 2026, 1:52 PM
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[WTS] Casio Duro Green + Uncle Straps Bundle - $99 CONUS

Casio Duro Green + Uncle Straps Bundle - $99 CONUS

Casio - Duro · $99
A Casio Duro with a green bezel and extra accessories, purchased last year. The seconds hand hits the minute markers on this model.

  • Condition: new
  • Bundle: includes various Uncle Straps
  • Shipping: CONUS via PayPal FF, Venmo, Zelle
Posted at
Apr 28, 2026, 6:05 PM
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[WTS] - Casio G-SHOCK GCW-B5000UN-6JR - 40TH ANNIVERSARY LIMITED EDITION.

- Casio G-SHOCK GCW-B5000UN-6JR - 40TH ANNIVERSARY LIMITED EDITION.

Casio - GCW-B5000UN-6JR · $1,750
This is a unique Casio G-SHOCK GCW-B5000UN-1 from the 40th Anniversary series. It features a forged carbon build and a monocoque carbon case with a marble pattern that's one-of-a-kind due to its manufacturing process.

  • Condition: pristine, like-new condition
  • Case Size: 43mm (classic square profile)
  • Material: Forged Carbon bezel and band, Carbon Monocoque case
  • Weight: 65g (remarkably light)
Posted at
Apr 28, 2026, 4:49 PM
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[WTS] Casio G-Shock GM-2100 (Metal “CasiOak”) – $120 shipped

Casio G-Shock GM-2100 (Metal “CasiOak”) – $120 shipped

Casio - GM-2100 · $120
This Casio G-Shock GM-2100 features shock resistance, a clean crystal, and light scratches on the case. It comes with an original strap and is in overall good condition.

  • Condition: Good
  • Water resistance: 200m
  • Case condition: Light scratches
  • Display type: Analog/Digital
Posted at
Apr 28, 2026, 10:50 AM
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[WTS] Casio Gshock MTG-1100B

Casio Gshock MTG-1100B

Casio - MTG-1100B · $180
This Casio Gshock is solar powered and radio-controlled, making it accurate without battery changes. The watch has been modified to fit better with an aftermarket clasp.

  • Condition: Good condition, with a cut on the resin bezel
  • Bracelet size: 6.25 inch
  • Clasp modification: modified to attach 18mm clasp
  • Original clasp condition: has one of the two resin pieces missing
Posted at
Apr 27, 2026, 8:12 PM
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[WTS] Casio G Shock GA-2100 Clear + lots of extras!

Casio G Shock GA-2100 Clear + lots of extras!

Casio - GA-2100 · $85
A Casio G-Shock GA-2100 Clear with many extra straps and accessories, including the original box.

  • Condition: Great shape
  • Extras: Multiple straps and accessories included
Posted at
Apr 27, 2026, 3:35 PM
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[WTS] Casio G-shock GMWB5000D-1

Casio G-shock GMWB5000D-1

Casio - GMWB5000D-1 · $425
This Casio G-Shock GMWB5000D-1 is in excellent condition with some minor marks on the clasp.

  • Condition: Excellent with desk diving marks on the clasp
  • Shipping: CONUS
  • Payment Methods: Zelle or PayPal
Posted at
Apr 27, 2026, 11:26 AM
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[WTS] Casio CGW-50 Cosmo Phase (Module 827)

Casio CGW-50 Cosmo Phase (Module 827)

Casio - CGW-50 · $799
This Casio CGW-50 Cosmo Phase is a digital watch released in the late 80s, featuring a planetary alignment display and tracking Halley's Comet. It has a sharp and clear LCD display, and is considered a grail for fans of 'Golden Era' gadget watches.

  • Condition: fantastic condition for the age
  • Age: late 80s
  • Bezel status: original bezel writing and no notable scratches
Posted at
Apr 27, 2026, 5:42 AM
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[WTS] G-SHOCK Ref. 6900-PT1 by John Mayer – Brand New in Box – $350 OBO

G-SHOCK Ref. 6900-PT1 by John Mayer – Brand New in Box – $350 OBO

Casio - GW6900-1 · $350
a Casio G-SHOCK Ref. 6900-PT1, brand new in box.

  • Newness: Brand new in box
Posted at
Apr 26, 2026, 1:23 PM
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