Casio G-Shock GA-B2100KB-2A Brings Ocean-Inspired Style to the Iconic CasiOak

The Japanese watchmaker unveiled a blend collection with conservation charity ICERC Japan that perfectly blends G-Shock toughness with ethereal, ocean-inspired aesthetics.

Casio has long been a master of delivering serious durability at accessible prices, but their latest release in the “Love The Sea and The Earth” series takes things to a new level of visual intrigue. The standout piece is the GA-B2100KB-2A, a translucent take on the beloved CasiOak platform that feels both futuristic and deeply tied to marine conservation themes. At approximately ¥29,150 (around $180 USD), it offers premium features like Tough Solar power and Bluetooth connectivity without breaking the bank.

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Launched in 2019 as the GA-2100, this slim analog-digital G-Shock quickly earned its nickname due to its octagonal bezel, which echoes the legendary Audemars Piguet Royal Oak.

The Carbon Core Guard structure was key to its success. By reinforcing the case with carbon fiber, Casio achieved a surprisingly thin profile—around 11.9mm thick—while maintaining legendary G-Shock resilience.

Over the years, the CasiOak has exploded in popularity. The new GA-B2100KB-2A builds on the upgraded GA-B2100 platform (which added Tough Solar and Bluetooth) and pushes the translucent concept further with thematic depth.

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This isn’t just another clear G-Shock. The GA-B2100KB-2A features a gradient translucent case and band that starts nearly clear near the lugs and deepens into a rich azure blue toward the buckle. It evokes the transition from shallow coastal waters to the deep ocean.

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Around the dial, azure accent text pops against a darker backdrop, while the mode hand at 9 o’clock is uniquely shaped like a whale’s tail. This charming detail celebrates marine life and ties directly into ICERC Japan’s mission.

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Dimensions remain user-friendly at 48.5 × 45.4 × 11.9mm. The octagonal bezel retains that signature sporty elegance, but the translucent materials give it a lighter, almost weightless appearance.

Functionally, it delivers everything modern G-Shock fans expect:

• Tough Solar charging
• Bluetooth smartphone link
• 200-meter water resistance
• Shock resistance via Carbon Core Guard

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This release is part of Casio’s annual partnership with ICERC Japan, a non-profit dedicated to protecting whales, dolphins, and ocean ecosystems. The 2026 collection marks ICERC’s 35th anniversary and includes not just the CasiOak but also a higher-end Frogman model.

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The translucent design symbolizes transparency in environmental efforts and the fragility of ocean ecosystems. The gradient blue and whale motif create an emotional connection that standard tool watches often lack.

who

This watch appeals to G-Shock collectors, beach and outdoor enthusiasts, sustainability-minded buyers, and style-focused users seeking something distinctive yet versatile.

It’s Japan-exclusive for now, which adds huntability and potential resale interest, though global availability often follows popular releases.

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The GA-B2100KB-2A proves Casio can deliver meaningful collaboration pieces without inflating prices into luxury territory. At $180, you get innovative design, solid specs, and a connection to important conservation work.

As summer 2026 approaches, expect this translucent beauty to turn heads at the beach, in the city, or wherever adventure calls. Casio has once again shown that great watches don’t need to cost a fortune—they just need thoughtful execution and a meaningful story.