Casio Protrek PRT 500 I found for just $5. Guess I did ok : r/casio
FS: New old-stock CASIO PROTREK PRT-20 (Cal.1525) - myWatchMart
Amazon.com: Casio Men's 'PRO TREK' Tough Solar Powered and Stainless Steel Watch, Color:Green (Model: PRW-3510Y-8CR) : Clothing, Shoes & Jewelry
Casio ProTrek PRG-340-1ER | Helveti.eu
CASIO PRT-20, El Pro Tek que me faltaba... (Review 91) | Relojes Especiales, EL foro de relojes
Amazon.com: Casio Watch PROTREK PRT-B70T-7JF [Angler Line 20 ATM Water Resistant BLE Compatible PRT-B70 Series] Shipped from Japan : Clothing, Shoes & Jewelry
RELOJ VINTAGE CASIO Pro Trek "Prt-20" Only Modulo 1525 Original Años 90 EUR 40,00 - PicClick FR
FS: New old-stock CASIO PROTREK PRT-20 (Cal.1525) | WatchCharts
Vintage Men Casio PRT Pro Prt-40 / Modüle 1470 TEK/ Watch - Etsy
RELOJ CASIO PROTREK PRT-20
Casio PRT-20 Pro Trek Barometer Twin Sensor Vintage Digital Japan Watch | eBay