I'm wearing my OM now - I also have a black one....
The metal bracelet is wonderful - has four microadjustments, diver's extension... it's "robust." (Sizing the bracelet is a caution - has a pin-collar arangement... there are how-tos online that will walk you through it.)
I like variety - I got the metal bracelet on my BM; a rubber strap for my OM; and an aftermarket metal bracelet... I swap em around alot.
These are fantastic watches - hardy, accurate, and with a 120-click bezel that just feels right.
And you can read by the lume!
"It's not a game, but we know how to play it."