I think it depends on the bloke,does he normally wear jewelry?My husband only wears a watch! His 'trade'/work would prove dangerous if he wore a ring,because of the machinery he works around.Plus if he only wore one when we went out or at home I'm sure he would put it down somewhere and lose it!
On the other hand I have two sons,one only wears neck ?braids for a better word,with different designs of jewelry attached,we bought him a lovely silver japanese design in silver in America once.The other son however literally drips gold

he has gold watche(s) chains,rings,even an earring!
It's very much down to personal taste.
p.s. can't sleep as you have probably gathered,seeing new pup again tomorrow,she's just over 3weeks old now!