My small collection below, these are the 8 complete / running ones I own, but only 2 of them get worn with any regularity really. There are maybe another half dozen broken ones in a drawer, missing links or parts of straps, but they're cheapie things (Lorus etc) that are only fit for landfill.
L-R top row: An unknown model Citizen Eco Drive (solar powered), an unknown model Festina Automatic (self winding mechanism), some other cheap Festina quartz, and an old G Shock G 9100 Gulfman.
L-R bottom row: An unknown model Seiko Solar, a Mondaine Classic, an unknown cheap-ish Seiko Chrono, and a G Shock GA 2100 (known as the CasiOak).
My daily one is the old G Shock Gulfman, I like it most because my eyesight is appalling and it's got a big readout that lights up nice and bright at night. It's also indestructible, it's 12 years old and did 2 tours Iraq plus one in Afghanistan, and it's needed one battery replacement in that time.
The Seiko solar sometimes gets used, again it's easily readable but it does look a bit smarter so I use that for when I have to dress smarter.
The G Shock / CasiOak was a stupid purchase, it's all very well looking like a "Batman" or "Spinal Tap" watch (i.e. "none more black"), but the tiny numbers are completely unreadable in low light, and the light up function is puny.