I don't collect watches per se, but I do have a fondness for one specific kind of watch. It's called a Frogman and it's made by Casio under their G-Shock line. I own three: two solar GW-200's and one DW-8200 (pictured here) made in August, 1998. They're the only G-Shocks ever to be made out of solid titanium and are built ISO rated as a dive watch.