
Ref. AQ-S820W · Sport
AI-detected from the product image
Casio collection · 40 watches
3 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 AQ-S820W for its strong value, citing its Tough Solar capability and feature-rich digital screen as standout aspects for the price. The analog setting method and user-friendly world time feature are also appreciated. However, the small negative digital display is consistently flagged as difficult to read, particularly in poor lighting. Some users also find the hand style unappealing, and one owner notes the solar feature in this series might be priced higher than comparable G-Shock or Lineage models. The 50.1mm case size is noted as significantly large. Overall, owners rate the Casio AQ-S820W highly for its impressive specifications and solar functionality at an accessible price point.
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