
Ref. GMA-S2100 · Sport
AI-detected from the product image
G-Shock collection · 101 watches
3 colorways
The market
The forum market
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Casio on the secondhand market
+10.5%
2026 so far · +1.3% to +21.6% · 47 matched watches
In line with the index
Year-by-year readings →The connection engine
The community take
Owners widely praise the Casio GMA-S2100 for its smaller size, fitting well on various wrists, including those with smaller circumference, and some men find its dimensions to be a sweet spot. The watch is frequently highlighted for its attractive off-white color scheme on the band, bezel, and indices, which complements its ana-digi display. One owner describes it as a fun, light, and thin watch, calling it the best $90 they have spent and their most worn watch. The dial is noted as being more interesting than some other models due to a brushed silver disk. Overall, owners rate the Casio GMA-S2100 highly for its appealing aesthetics and comfortable, compact wearability at its price point.
On real wrists
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The paper trail
The discussion