Watch type
Casio's shock-resistant line, which began in 1983 with the DW-5000C. We cover the square 5600 family and its solar versions, the round DW-6900, the GA-2100 that fans call the CasiOak, and the Frogman and Mudman tool watches.
8 references we cover.

Casio · G-Shock Square
G-Shockref DW-5600E-1V
$110–$160 typical ask
163 on eBay

Casio · G-Shock Square
G-Shockref DW-5600C-1V
$360–$950 typical ask
74 on eBay

Casio · G-Shock Square
G-Shockref GW-5000U-1
$240–$320 typical ask
219 on eBay

Casio · G-Shock Square
G-Shockref GW-M5610-1
$140–$230 typical ask
196 on eBay

Casio · G-Shock Round
G-Shockref DW-6900-1V
$100–$230 typical ask
185 on eBay

Casio · G-Shock Analog-Digital
G-Shockref GA-2100-1A1
$120–$180 typical ask
118 on eBay

Casio · G-Shock Frogman
G-Shockref DW-6300
$230–$650 typical ask
108 on eBay

Casio · G-Shock Mudman
G-Shockref G-9000-1
$100–$220 typical ask
79 on eBay