California-inspired lifestyle boutique Ron Herman is a frequent collaborator with G-Shock in Japan and is known for its understated surf-themed watches. This year’s collaboration marks its first G-Shock GA-2100 release and is also its first non-G-LIDE release. The gray analog-digital watch has a black and white dial with a Rob Herman logo printed below the G-Shock logo. The logo is also engraved on the stainless steel case back, and the case back also identifies this limited edition model as being made in Japan.
The GA-2100 is a compact and lightweight G-Shock watch with a Carbon Core Guard case, measuring 48.5 × 45.4 × 11.8 millimeters and weighing 51 grams.
The Ron Herman watch will go on sale in Japan on May 10 (12:00), 2025, for 23,100 yen at ronherman.jp, with a scheduled shipping date of May 20. Ron Herman collaborations are usually released in Japan only, but international shipping appears to be available via WorldShopping. (Note that ronherman.jp states, “This product is not eligible for cancellation or return,” and “It cannot be ordered together with other products. When ordering, please proceed to the payment screen with only this product.”)





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