Casio's new Pro Trek watch is made of corn and castor seeds

The Casio Pro Trek PRW61 is the first Pro Trek model to be made using renewable biomass plastics, but is still just as tough as you need an outdoor watch to be.

Casio first use of biomass plastic for PRO TREK watch

PRW61-1A Pro Trek

Casio Pro Trek Triple Sensor Solar Watch

Casio Pro Trek Green Watch PRG-340-3

Casio and Mountain Apparel Brand, Mammut Link Up for the Latest Addition to PRO TREK line - Worn & Wound

This retro-inspired Casio adventure watch is made from beans yes, really

Here's Everything You Need to Know About the Casio Pro Trek WSD-F30

PRG340T-7D, Protrek Watches

CLIMBER LINE PRG-340 Developer interview video : CASIO PRO TREK