Casio G-Shock Mudmaster GWG-1000-1AJF Made in Japan for $752 for sale from a Private Seller on Chrono24
G-Shock Mudmaster | Master of G | Buy best price from Japan
User manual Casio G-Shock Mudmaster GG-B100-1AER (English - 40 pages)
User manual Casio G-Shock GG-1000-1AER (English - 8 pages)
Unbelievable! £32 Casio G-Shock Mudmaster WR20BAR from the Gate - everything works like the original, including the 'hidden' manual hands adjust setting mechanism from the original. Amazing. : r/ChinaTime
REVIEW: Casio's Mudmaster GG-1000 a G-Shock watch designed to survive construction, trades work | Equipment World