Omega - i love the Omega 'ploprof' mesh strap, but here's an alternative
Seamaster Ploprof 1200M Co-Axial Master Chronometer 55 x 48 mm - 227.90.55.21.04.001 | OMEGA®
Steeldive SD1969 Ploprof Diver Watch with mesh and 2 OEM rubber straps | WatchUSeek Watch Forums
OMEGA Watches - The Seamaster Ploprof 1200M Co-Axial Master Chronometer in 18K Sedna™ gold and titanium is lighter than the original, but just as tough. It even has a "sharkproof" mesh bracelet.
Omega Shark Mesh Seamaster Ploprof Steel 1980/ 237 Bracelet//B... for $1,087 for sale from a Trusted Seller on Chrono24