The reference 16800 is the first Submariner equipped with sapphire crystal, among the various improvements we find a redesigned bezel, and the significantly increased waterproofing of the Submariner, which has gone from 200 to 300 meters deep.
This watch is considered a transition model, equipped with an opaque dial with luminous indices in pallettones instead of the classic use of shot glasses.
It is also the latest matt dial for modern case, with a combination of vintage features and modern fit, and is known as "Transitional Submariner".