Probably my favorite modded piece. GWM5610BB w/ Negative Red display mod. : r/gshock
Casio G-Shock GWM5610-1 Review: The O.G. G-Shock Is Still the Best
Casio International Edition G Shock Classic Multiband 6... for $299 for sale from a Seller on Chrono24
Casio USA on Twitter: ""If any timepiece can claim to be a true surf watch, it's the new @GShock_US GBX110KI" https://t.co/CesbRpSy88 via @ @MensJournal https://t.co/uWqdLgNccZ" / Twitter
Casio G-shock 5600 Gw-m5610bb-1jf Black Electric Wave Solar Watch G205 NA for sale online | eBay
NEW CASIO Watch G-SHOCK glossy black Solar GWM5610BB-1 3159 | WatchCharts