Amazon.com: CASIO G-Shock GW-S5600U-1JF [G-Shock 20 ATM Water Resistant Solar Radio Wave GW-S5600 Series] Shipped from Japan : Clothing, Shoes & Jewelry
Casio G-Shock GW-S5600 review & 3159 module tutorial (also works for GW-M5610 & GW-5000) - YouTube
Modified GW-S5600 with GW-M5610 bezel and GW-5000 strap. : r/gshock
Better late than never! Finally picked up a GW-S5600-1JF (Ti/CF/resin square) | WatchUSeek Watch Forums