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.

First Look: CASIO PRO TREK PRG340 - Backpacker

Casio Pro Trek PRG-340-1 Black Watch

Nature-friendly Pro Trek PRW-61 and PRW-51 watches are made with regenerable biomass plastics - G-Central G-Shock Fan Site

Casio to Release Octagonal PRO TREK with Metal Bezel

Consumer Electronics Test and Development - Casio develops watch 'made from beans

Field Report: 2022 Casio Pro Trek PRG-340 – Professional Watches

Field Report: 2022 Casio Pro Trek PRG-340 – Professional Watches

Casio first use of biomass plastic for PRO TREK watch

Casio Pro Trek PRG-340-1 Black Watch

Casio to Release PRO TREK Timepiece Designed in Collaboration with MAMMUT

ProTrek PRW-35 / 3490 / Small, Lightweight and Eco-Friendly

Casio Pro Trek Triple Sensor Solar Watch

Climb Higher with the New Casio PRO TREK PRG-340 » Explorersweb

Casio expands it range of eco-friendly watches made from castor seeds and corn｜Arab News Japan