In this era, a wristwatch is man jewelry. And there is nothing wrong with that at all.
Watches are pretty much the only acceptable item of ''jewellery'' for men now.
Yes, only a good watch is worth adorning a classy man. Today it's en vogue among the iGents to wear a lot of bracelets and even rings: it's a very tacky and cheap looking use, I would definitely ban.
At this stage, mechanical and Quartz watches are like analogue film cameras completely superfluous. But unlike film cameras, they still have relevance on the aesthetic level and long may that reign.
Yes, actually nobody needs to wear a watch nowadays, though a nice timekeeper at the wrist does certainly enrich and fulfill a nice outfit.