I'm a bit of a watch afficionado - Of the three I mainly wear out, there is a 'classic' round face silver bracelet chronograph, it's a pretty normal watch, but it is expensive and it can be used as a DHV - but it's kinda hard to say 'look at my expesive timepiece!' without coming across as arrogant.
There's also a 60's esque leather bracelet square faced watch. Simply because it looks good with what I choose to wear. Mod in case you're wondering. Ie Beatles, Kinks etc if you were still wondering
The third choice, far and away my favourite, is my gold fob watch. Hard to pull it off unless you're already a snappy dresser (fob + jeans? No way) but if you can, it's a great route into conversation without a doubt!