The GG-1000 is a battery-powered watch (not Tough Solar) with a Twin Sensor (compass and thermometer). The bezel has a similar design as the GWG-1000 but does not have a front-facing light button. The face has two LCD display areas and a prominent mode indicator dial. Like the GWG-1000 the GG-1000 is resistant to mud and dust. Unlike the GWG-1000’s sapphire crystal, the GG-1000 has a mineral glass display.

GG-1000-1A | CASIO GG-1000-1A | CASIO

The Mud Resistant construction helps to ensure that nothing gets into the watch, as the button guard cylinder structure of this model seals out mud and dust. Twin Sensor capabilities provide instant access to direction and temperature information when needed under tough conditions, and Super Auto-LED illumination and Neobrite coating on the watch hands and index ensure an easy to read display when you need it the most The Mudmaster GG-1000 is a smaller version of the Mudmaster GWG-1000 with less features in the same way the Gulfmaster GN-1000 is a reduced version of the Gulfmaster GWN-1000. Auto Light: The watch face will illuminate automatically when you tilt your wrist towards you. Once activated, this feature will automatically deactivate after six hours., LED light, Selectable illumination duration (1.5 seconds or 3 seconds), With afterglow The button tones on the mode button can be switched off for discreet operation. Pre-set alarm or timer functions remain active.

Pros: Mud-resistant. Rugged and tough style. Smaller and lighter than the GWG-1000. More affordable than the GWG-1000.

GG-1000WLP-1ADR | Casio G-SHOCK

Some specifications (price, material, weight, Neobrite, etc.) for individual models may vary within a series. Some models listed may not be available in all countries. Here’s how the higher-end GWG-1000’s case is constructed. The GG-1000 in some critical ways is similar. The Mudmaster GG-1000 line will be released in April 2016 starting in Japan. The retail list price is ¥37,000 JPY.

A built-in direction sensor detects magnetic north displaying both this and your current direction on the watch face., Bearing Display: Indicates your course against a recorded bearing, Measuring Range: 0 - 359 degrees, Measuring Unit: 1 degree Daily Alarms: Each will sound every day at the time you set, Hourly time signal: The watch beeps every hour on the hour, Snooze function Measurements are 56.2 x 55.3 x 17.1 mm and the weight is 92 grams. That is slightly smaller and lighter than the original GWG-1000 which is 59.5×56.1×18 mm and 119 grams.