This Rolex Sea-Dweller 16600 is a 40mm stainless steel dive watch with an Automatic Chronometer-Certified Movement, the Caliber 3135, and a water resistance of 1,220 meters (4,000 feet).

Key features of this watch include a black dial, a black unidirectional rotating bezel with a 60-minute graduation, and a helium escape valve.

It is fitted with a stainless steel Oyster bracelet and a folding clasp, which does not function 100%, but once closed is safe and there is no risk of the clasp failing. The bracelet requires a new clasp to function perfectly but this is factored in the price.