Casio celebrates Pro Trek’s 30th anniversary with a new addition that's equal parts ceremonial, sustainable and functional.

Casio gave the original G-Shock design a sleek makeover with two new references featuring a fan-favorite detail on the dial.

The legendary Casio brand—which introduced the first digital ... We update when possible, but deals expire and prices can change. If you buy something via one of our links, we may earn a commission.