For decades, Ulysse Nardin has been known as one of the foremost brands offering marine chronometers. Its Maxi Marine series brings divers the best of watchmaking prowess and functional precision. Now the brand releases its bold yet alluring new Maxi Marine Diver collection, the Black Sea. The 42-hour power reserve diving watch houses a self-winding movement with oversized small seconds register and a large date display. The stainless steel case is specially treated and has undergone complex vulcanization process to produce a matte-black rubber coated finish. The watch is water resistant to 200 meters and features a unidirectional rotting bezel. Its rubber strap includes some ceramic component for rugged strength and scratch resistance. It retails for $12,900. This is one sea you want to wear, not just see.