Rolex Reference 1665 · Complete Reference

Double Red Sea-Dweller
Dial Variations

The Double Red Sea-Dweller Dials

There are at least seven different variations of the DRSD dials that were sold to the public. There are dials with only a single line in red, and other dials with two lines of red without “2000.” Early Sea-Dwellers did not always have the helium escape valve — however those very early versions were limited examples not available to the public and are covered separately in the Single Red (Mark 00) and Mark 0 sections.

The initial dial’s print is in red, possibly printed over white paint, with both lines in similar size fonts. A few of these have faded and the lettering almost looks pink or white. The coronet is clearly delineated and flat, but the “O” under the spikes can be clearly visualized. Most of these dials have the “patent pending” caseback and serial numbers between 1.7 and 2.2 million.

Version I — Mark I Dial

Print Color
Red — possibly printed over white paint. Fades to pink or near-white on many survivors.
Font
Both “Sea-Dweller” and “Submariner 2000” in the same size font
Coronet
Clearly delineated and flat. The “O” under the spikes is clearly visible.
Associated Caseback
Patent Pending — serials 1.7 to 2.2 million
Key Fact
The Mark I dial is the only dial found exclusively on the Patent Pending DRSD. It does not appear on any other model.
DRSD Version I Mark I dial
Version I — Mark I Dial, full view
Mark I dial close-up
Version I — red text faded to light pink
Mark I coronet close-up
Version I — coronet detail, flat bottom
Mark I additional close-up
Version I — additional detail

Version II — Mark II Dial

The second version of the dial is seen in approximately 1.7 million cases. The distinguishing characteristic is the print — usually applied directly onto the dial, bright red and crisp. The font is smaller on the second line. The dial sometimes changed color from matte black to a light brown or chocolate color, known to collectors as a “tropical” or “chocolate” dial.

Print
Bright red, crisp, applied directly to dial
Font
Smaller font on second line (“Submariner 2000”)
Coronet
Spikes are distorted. The “O” under the coronet is almost non-existent.
Tropical Variant
Dial can age from matte black to a chocolate brown — highly prized by collectors
DRSD Version II Mark II dial
Version II — Mark II Dial
Mark II dial detail
Version II — print detail
Mark II dial close-up
Version II — coronet detail

Version III

This version has been seen in a few authentic watches. The red print is very similar to Version II, but the coronet is clearly printed with a flat bottom — more like Version I. A key identifying detail: the “D” in Sea-Dweller lines up with the “R” in Submariner 2000. On Version II, the “D” in Sea-Dweller lines up with the “I” in Submariner 2000. The depth marking spacing is also different from Version II.

DRSD Version III dial
Version III — note alignment of “D” over “R” in second line
Version III close-up
Version III — coronet detail. Photos: Ashton

Version IV — Most Common

The final version marketed for general production and the most common type of dial. The red print is clear but not heavy — when viewed through a loupe, it appears to be made of dots. The font of the red lettering is significantly larger on the top line. The coronet is large with clearly defined spikes, and the “O” under the coronet is quite prominent.

Print
Clear but not heavy — dot-matrix appearance under loupe
Font
Top line (“Sea-Dweller”) significantly larger than second line
Coronet
Large, clearly defined spikes. Large “O” beneath.
Availability
Most common DRSD dial — general production 1971–1977
DRSD Version IV dial
Version IV — general production dial
Version IV detail
Version IV — print and coronet detail
Version IV close-up
Version IV — close-up

Mark V

A later version of the dial. The coronet is similar to the Mark II. The writing is in red. Critically, the depth markings “ft” and “m” are in italics, and the markers contain luminova rather than tritium.

Coronet
Similar to Mark II
Key Identifier
Depth markings “ft” and “m” are in italics. Luminova markers.
DRSD Mark V dial
Mark V — luminova markers, italic depth markings
Mark V detail
Mark V — detail
Mark V close-up
Mark V — close-up. Photos courtesy of LondonWatchCompany.com

Mark VI

The Mark VI is a replacement luminova white Sea-Dweller dial with red paint applied over the “SEADWELLER” portion only. An interesting variant — not original production.

DRSD Mark VI dial
Mark VI — replacement luminova dial. Photo: Addict
Mark VI detail
Mark VI — detail. Photo by macfever

Mark VII

DRSD Mark VII dial
Mark VII. Photo: Addict
Mark VII detail
Mark VII — detail
Mark VII close-up
Mark VII — close-up
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