Casio's new compact pastel G-Shock hides its message on a single small hand at nine o'clock

Casio has announced the GMA-S2100PR-4AJR, the fourth G-Shock released in support of Pink Ribbon breast cancer campaigns in Japan, due in October at 18,700 yen including tax (roughly $120).
The base is the GMA-S2100. It's a compact octagonal model, finished in pastel pink throughout. The only figurative element sits at nine o'clock, where the small hand carries a pink ribbon motif. It ships in dedicated packaging, and Casio will donate 5% of Japanese sales to J.Posh, the certified non-profit that has run breast cancer awareness, screening access and patient support programmes in Japan for more than twenty years.
The series began with the GMA-S2100P-4A and GA-2100P-1A, continued with the DW-5600PK-1 and GMD-S5610PK-4 in 2024, and ran the GMA-S145PK-4AJR last October at 18,150 yen. This year's watch is 550 yen dearer.
Construction is standard for the line. Case and bezel are carbon fibre reinforced resin over resin, with biomass plastic used for the main bezel and band parts, made from renewable organic feedstock. Carbon Core Guard sits beneath the shock-resistant structure. The watch measures 46.2 by 42.9 by 11.2 mm, weighs 41 g and takes a 140 to 205 mm wrist. Water resistance is 20 bar, the glass is mineral rather than sapphire, and the hands carry Neobrite.
The module runs world time for 48 cities across 31 zones plus UTC, a stopwatch reading to 1/100 second below an hour and one second above, a 24-hour countdown timer, five daily alarms and a full auto calendar, rated at plus or minus 15 seconds a month. Two white LEDs light the dial and the LCD separately, each with afterglow switchable between 1.5 and 3 seconds. A hand retraction function shifts the hands clear of the display. Battery life is about three years.








