Submariner reference
Rolex 1665
Gas escape valve / Double Red, Mk I
The early Sea-Dweller adds a helium escape valve and greater depth capability to the Rolex dive-watch line. Double RedA Sea-Dweller dial with two lines of red text, one for Sea-Dweller and one for Submariner 2000. and Great WhiteA Sea-Dweller 1665 nickname for later examples with all-white dial text instead of the earlier red lines. dials mark different phases of production. This catalog entry records case material: Gas escape valveA gas escape valve used on saturation-diving watches so built-up helium can leave the case safely.; dial: Double Red, Mk I.
- Dealer range
- $75,000 to $140,000
- Auction range
- $55,000 to $110,000
- Evidence
- 3 source links
