Thanks Sam, and I’m pleased to say I have that Rolex, which happy with, however even though its bracelet is quite comfortable, I still prefer leather straps, not only do I find straps feel better than bracelets, they look better too.
Another thing I’m not so keen about bracelets is when the wrist is warm the fit is perfect, but when cold it becomes loose, therefore I think I’ll get that strap in the photo which is Horween Cordovan leather.
I’ll be finding about end links to use with that strap, but even if none are available for an OP 39, I I’ll still order that strap.