Look at Staib mesh bracelets made in Germany although I've not used Staib with any Rolexes. NATO's are probably the best option for your sub. Specifically consider Erika MN straps which are by far the most comfortable I've worn thus far, and should work like a charm on your sub.Ouch and ouch! Originally fitted to my IWC Pilot and received negative views on metal strap instead of the leather strap for the Pilot!
Confessed earlier as haven’t wore metal for a long time in any of my watch which I usually replace with the nato or leather strap, suddenly I felt good wearing a metal strap!
Thanks for the frank views but have since ordered more metal incl the mesh and SS metal to ‘ try ‘ too...........will wear for the fun of it!
Peace and Cheers all!