Should be 18mm then...anything should work in that size but measure the lug width if you'd like to be sure.
They look loads better on leather, heres a 19mm strap im trying but will try a few more before i settle on the right one.
I'ake these for rpaige and the Melbourne Watch company, to my knowledge the only saltwater fish leather straps in the world ... rrp is $110 us and I have 18mm at the mo Also, i have an elgind dialled rpaige bnib I can do a great price on at mo bnib if interested Matt
A couple of other pics (dodgy iphone, sorry) Stingray the one above went to Darren Brass from Miami Ink