Recently purchased an SRP77 and, as others have said, it's a spot on watch with a nice rubber strap.
Anyway, been having a look at strap alternatives just for the fun of it and I reckon a military green or a dark (not black) charcoal or a bond NATO are probably the way forward.
However, I read somewhere that a heavy-ish watch and a NATO aren't really a good match in terms of comfort and sitting well on the wrist.
Anyone vouch for this? What's your experience with various straps on the SRP?