Casio G-Shock Gulfmaster Men's Multi-function Black Rubber Strap Watch. Designed to withstand the rigours of maritime wear, the Casio G-Shock Gulfmaster features a whole host of functions. A moon age indicator displays a graphic representation of mood data, while a digital compass takes continuous readings for sixty seconds. This feature-packed watch also includes a hand shift function to move the hands for easy reading of the digital display and a super illuminator. A stylish yet robust timepiece, this Casio G-Shock Gulfmaster has a black rubber trap that fits seamlessly around the durable resin case.