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
User manual Casio G-Shock Mudmaster GG-B100-1AER (English - 40 pages)
Manual de usuario Casio G-Shock GG-1000-1AER (8 páginas)