Mark G-Shock’s 40th Anniversary in a cool way with the G-Shock GM2140GEM-2A Adventure Gem Men's Watch. This amazing metal-covered watch takes inspiration from the ancient minerals that helped seafarers navigate. Thanks to forging, ion-plating and masking, the bezel has a truly unique look. The band is crafted from translucent resin using special hot-stamping with a distinct texture and Garal color molding techniques. This watch is a must - have. It features the “since 1983” on the dial and the Eric - Haze designed 40th logo engraved on the back. It's 49.3mm in size, shock - resistant, has 200m water resistance and a 3 - year battery life.

Using this G - Shock watch is easy. Just set the time and date as you would with any regular watch. It's shock - resistant, so you don't have to worry too much about small bumps, but try not to drop it from a great height. With 200m water resistance, you can wear it while swimming or snorkeling, but avoid using it in high - pressure water situations like deep - sea diving. The battery lasts for 3 years. When it's time to change the battery, take it to a professional watch repair shop. To keep it looking great, clean it with a soft, dry cloth regularly. Don't use harsh chemicals on it as they might damage the band or the bezel.