Got this GShock GW-M5600 since 2008. Battery went to low only once after I started getting into Seikos. It's my time reference when I set my automatic watches :) : r/BuyItForLife
GW-M5600 : r/gshock
Casio Watch Parts GW-M5600 R GW-M5610 R Bezel.Orange Letter Black G-Sh – WristWatcher
FS: Casio G-SHOCK GW-M5600 - myWatchMart
Review Of The Casio G-Shock GW-M5600BC On WatchReport.com | aBlogtoWatch
Casio GW-M5600 Series G-Shock Radio nvy Solar Wristwatch Urethane Band New | eBay