Casio's first MIP display Mudman watch leaks with step counter and rugged build

The Mudman name has always meant one thing in the G-Shock lineup: maximum protection, as little compromise as possible. A new model may be about to add a long-overdue display upgrade to that formula. The Casio G-Shock GDG-B100 has just surfaced via a Russian Casio enthusiast blog, Casioblog, which claims to have obtained leaked imagery of the unannounced watch ahead of an expected summer 2026 reveal.
A Mudman with MIP
The most key detail here is the display. The GDG-B100 would reportedly be the first Mudman-series watch to feature a MIP (Memory-in-Pixel) display. Casio has been gradually rolling out this tech across its mid-range G-Shock lineup, like the recent GMW-BZ5000RC-1. MIP panels bring superior readability and contrast over standard LCD modules, and draw way less power, typically enabling two-year battery life on a conventional cell. The blog includes no evidence of Tough Solar on the GDG-B100, however.
Design and expected specs
Visually, the GDG-B100 follows the classic Mudman/Mudmaster design language — large case, chunky button guards, and a heavily textured strap with thick lugs. Based on the display layout, the blog infers the watch will include a step counter with goal tracking, Bluetooth for smartphone time sync and activity logging, a training mode covering distance, pace and calorie data, plus standard G-Shock features including world time, stopwatch, interval timer, alarm, and 200-meter water resistance. Additional sensors such as a thermometer or compass are considered unlikely at this tier.
Three variants have been identified so far: GDG-B100-1 (all black), GDG-B100-1A3 (black with green camo strap), and GDG-B100-1A5 (black with sand strap).
Pricing and timing
Casioblog estimates a $200–250 price range and expects an announcement this summer. Casio has not commented on the same.











