I like wearing a watch. For me, as a bloke, it's the only "jewellery" I would wear.
I have two posh watches, both of which I love. I can only properly justify one of them, which is a design classic and I'd admired for years before I bought my own. The other one was entirely a vanity/ego purchase and I'm still a bit embarrassed about it, lovely watch though.
I also have two work watches, a Casio G-Shock and a CWC G10. I take an almost perverse pleasure in seeing just how much abuse these can take. The seals on the G10 gave up in 45 degree desert heat combined with choking humidity, so I retired it with honours. The G Shock has so far proved un-killable, despite my best efforts. The face on it currently feels like emery paper because of all the swarf embedded in it.
Watches are groovy.