
Ref. GMA-P2100 · Sport
AI-detected from the product image
G-Shock collection · 101 watches
11 colorways
The 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-P2100 for its compact size, with one user noting it fits their wrist when other G-Shocks do not. The watch is described as having a smart look and keeping time with near perfection. One owner finds the GMA-P2100 a suitable size despite considering larger models, and another humorously suggests "P" in the model name might stand for "Pico" due to its small stature. On balance, owners rate the Casio GMA-P2100 highly for its wearability and reliable timekeeping.
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The paper trail
The discussion