G-SHOCK and Crocs made a limited-edition bundle in which the watch case can move from its wrist strap to a mounting system on a specially designed Crocs Echo Wave clog. The watch is model GA2100CROCS25-7; Casio announced a $200 launch retail price and availability beginning May 27, 2025. Those are launch details, not confirmation of current stock or pricing.
What comes in the G-SHOCK Crocs bundle?
The limited-edition GA2100CROCS25-7 bundle pairs a G-SHOCK watch with Crocs Echo Wave clogs. Casio describes the clog as specially designed for the watch’s removable case: take the case off its wrist strap and fit it into the clog’s rivet system. The watch can also be worn on its strap.
The mounting feature is specific to the specially designed Echo Wave in this collaboration. Casio’s product information does not establish compatibility with regular Crocs clogs or other Echo Wave footwear. Casio’s product page shows the model and bundle details.
How does the watch attach to the clog?
- Remove the watch’s marbled band from its modular case.
- Place the case into the rivet system on the collaboration’s specially designed Echo Wave clog.
- To wear the watch on your wrist again, remove the case from the clog and reattach the bands.
The design makes the watch case transferable between footwear and wrist wear; it does not mean that an ordinary Crocs rivet accepts the watch. Casio’s launch announcement also describes the case as removable from its bands. Casio America’s May 13, 2025 announcement gives the same collaboration context.
#1 Best Overall
- Runs small. Size up if between sizes.
- Incredibly light and easy to wear
- Digitally inspired sculpting and texture covering the upper
- Unique outsole with sculpting that seamlessly cascades from the upper
- 5 mm of additional heel capture offers an evolved aesthetic and improved fit
Design details and watch features
The Echo Wave clog has a glow-in-the-dark finish and a custom marbled ankle strap. The watch dial also glows in the dark, and its removable bands match the marbled pattern. The case back has Crocs-related marbled engraving, and the bundle is presented in special matching packaging.
Casio lists these functions and specifications for the watch:
Rank #2
- Find Your Size: We recommend sizing down one full size (If you are an 8, size down to a 7)
- Upgraded for Performance: Features a durable rubber outsole for improved traction and grip, making it perfect for active lifestyles.
- Adjustable Fit: New adjustable backstrap lets you customize your comfort and ensures a secure fit for every step.
- LiteRide Comfort with Bold Design: Experience sink-in softness with the LiteRide drop-in footbed, paired with a fully molded Croslite upper featuring striking sculpted details for a modern edge.
- Water-friendly and buoyant
- Shock-resistant construction and 200-meter water resistance
- Hand shift and double LED light (Super Illuminator)
- World time for 48 cities; the launch announcement specifies 31 time zones
- 1/100-second stopwatch and countdown timer
- Five daily alarms
The 200-meter water-resistance specification applies to the watch. Casio’s cited product information does not give the clog or the watch-to-clog attachment an equivalent water-resistance rating.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Launch date and price
Casio America announced the collaboration on May 13, 2025. The bundle was announced at a launch retail price of $200, with availability beginning May 27, 2025, through Crocs.com and select wholesale partners. Casio’s product page records the same availability date and channels.
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- Runs Large: We recommend sizing down. If you’re in between sizes, round down
- Get a Height Boost: Echo Clogs give you a 1.5-inch height boost. Stand tall with this athletic foam style shoe. Elevate your game without compromising your look.
- Iconic Comfort: These Crocs include Croslite construction, a LiteRide drop-in footbed, and a heel pad on the back strap for extra comfort.
- Easy to Clean: These Crocs for men and women are easy to clean, just use soap and water and allow for a quick dry.
The $200 figure is the announced launch price, not a verified current price. Current inventory, resale pricing and marketplace listings are not established by the cited Casio materials. Use the model number GA2100CROCS25-7 when looking for the exact bundle; standard Echo Wave clogs and other GA-2100 watches are not identified as equivalents.
Quick Recap
Rank #4
- Runs large. Size down one full size.
- Incredibly light, water-friendly, and easy to wear
- Fully molded Croslite upper with ventilation ports for breathability
- Dual-density comfort with Croslite sole and LiteRide footbed
- Customizable with Jibbitz charms for personal style
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
