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Is This Casio’s Most Rugged Non-G-Shock Watch Yet?

Tough enough.
SlashGear

This Casio Watch Is Made With Bioplastic Made From Castor Seeds And Corn

Casio has announced the PRO TREK PRW-61Y series, the latest in its venerable PRO TREK series. What sets this model apart from previous PRO TREK models, and indeed any previous Casio watch, is its use ...