Casio 3159 Module - GW-5000 series test screen, function explanation, watch set up - YouTube
Casio G-Shock GW-M5610 [REVIEW] - The Best G-Shock For Small Wrists! • The Slender Wrist
Casio G-Shock for $673 for sale from a Private Seller on Chrono24
Ordered the 5610-1 with the older 3159 module, received the 5610U-1CF with the newer 3495 module. I'm not complaining, and I only paid $90 👍 : r/gshock
G-Shock Black Full Metal GMWB5000GD-1 / GMW-B5000GD-1ER
Casio G-Shock GW-S5600 review & 3159 module tutorial (also works for GW-M5610 & GW-5000) - YouTube