![Amazon.com: Casio Men's PRO Trek Stainless Steel Quartz Watch with Resin Strap, Black, 23.5 (Model: PRW-6600Y-1A9CR) : Clothing, Shoes & Jewelry Amazon.com: Casio Men's PRO Trek Stainless Steel Quartz Watch with Resin Strap, Black, 23.5 (Model: PRW-6600Y-1A9CR) : Clothing, Shoes & Jewelry](https://m.media-amazon.com/images/I/8159-QjlmcL._AC_UY1000_.jpg)
Amazon.com: Casio Men's PRO Trek Stainless Steel Quartz Watch with Resin Strap, Black, 23.5 (Model: PRW-6600Y-1A9CR) : Clothing, Shoes & Jewelry
![Pro Trek PRW-51FC-1 and PRW-61FC-1 are deluxe models with sapphire crystal and composite band, PRW-51Y-1 is a standard model with resin band Pro Trek PRW-51FC-1 and PRW-61FC-1 are deluxe models with sapphire crystal and composite band, PRW-51Y-1 is a standard model with resin band](https://www.g-central.com/wp-content/uploads/2022/12/PRW-51FC-PRW-61FC-PRW-51Y.jpg)
Pro Trek PRW-51FC-1 and PRW-61FC-1 are deluxe models with sapphire crystal and composite band, PRW-51Y-1 is a standard model with resin band
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