Both. Dark brown leather, black leather, bracelet, nato, jb champion. It's one of those watches that can take most kinds of straps.
Thanks for the comments. I like the metal a lot. I think I'm liking the dark brown better. Need to grab a nice black strap and try it too. Maybe I'm just so used to wearing a bracelet with my watches and that's why the leather looks "funny" to me now.
Both leather and metal look F A B U L O U S in my humble opinion. Also, don't forget to consider the Omega replica spaceman strap (Nylon/Velcro) option. I like it quite a bit...very comfortable...especially in warm temperatures. It's also a great conversation item...people think you're a spaceman...or a former spaceman...or a retired spaceman. OK...people actually think you're a wanna be spaceman...but I really don't care!
I nearly always opt for bracelets myself but have to admit I much prefer it on the first leather strap.
with summer coming up, I'd recommend sticking with the bracelet. I find leather straps to be uncomfortable in the heat and humidity. Your speedy looks fantastic in both, so aesthetically you're safe either way. Go with comfort
I actually prefer the look on the leather, but echo bb58's sentiments in that leather can get hot in the summer, so bracelet or Nato is more weather- appropriate. Wear it in good health!