Overview about some Casio G-Shocks

 Wear in Season 2 and Season 4

DW-6600, DW-6900 and G-2500

Casio DW-6600 Wear in Season 2

Casio DW-6900 in the beginning Season 4 in the first half till Episode 13

Casio G-2500 Season 4  Episode 14