Rolex 1665 · Collector Reference · Double Red Sea-Dweller

DRSD Buyer’s Guide


The DRSD has gained in popularity and become an iconic watch for Rolex collectors. These are the guidelines used when considering a DRSD purchase — applies to regular production examples only, not prototypes.

Dial

First things first. The dial must be mint and match the age and serial of the watch. Check for peeling especially around the 6, 9, and 12 o’clock positions — Mark IV dials often had chips in these areas from being stuck to the case.

While a small imperfection is not a deal killer, it is preferred to have the most perfect dial possible. Some tolerance for imperfections is acceptable on a Mark I or Mark II, given their rarity. Whether yellowing or patina is present is a personal preference — for some collectors patina is highly desirable, for others the whitest markers win. Your call.

Dial · What to Check
Condition
Mint preferred — check for peeling at 6, 9, and 12 o’clock, especially on Mark IV dials
Age Match
Dial version must correspond to the serial range of the case — a mismatched dial is a major red flag
Hands
Must match the color of the dial — mismatched hands are a tell
Patina
Personal preference — yellowing is desirable to some, not to others. Neither is inherently wrong.
Mark I / II Tolerance
Greater tolerance for minor imperfections acceptable given their rarity — perfect examples command a premium

Serial

Always cross-check the dial version with the serial number. The ranges below are guidelines only — Rolex collecting has no hard rules, and there is always overlap at the edges.

These are only guidelines since Rolex collecting has no hard rules. It is generally accepted that DRSDs were produced in the 1967–1977 range with the last batch in the 5.2 million serials.
Dial Mark
Serial Range
Notes
Mark I
1.6 – 2.2 mil
Earliest configuration — rarest dials
Mark II
1.6 – 3.5 mil
Overlaps with Mark I at early end
Mark III
2.6 – 4.1 mil
Less commonly seen than Mark II
Mark IV
3.0 – 5.2 mil
Most common — widest production window

Caseback

Most DRSDs carry a caseback with “ROLEX” written across the back, including the patent pending models. A small number of transitional examples — usually in the 5.1–5.2 million range — will have “ROLEX” written around the caseback.

Caseback · Authentication Points
Exterior
“ROLEX” across the back (standard) — transitional examples may have text around the edge
Interior Engraving
Model number 1665 plus serial number (or last 3 digits on early models) must be present — this is critical, especially on transitional pieces
Production Date Stamp
Some examples carry a production quarter stamp (e.g. “II 72” = second quarter 1972)
Early vs Late
Early models: last 3 digits engraved. Later models: full serial engraved. Full serial is preferred for authentication.

Movement

Always a calibre 1575. The bridges will read as 1570 — the 1575 is a 1570 movement with a date module added. Any movement other than a 1575 family is immediately suspect.

Movement · Specification
Calibre
1575 — always. Bridges read 1570 (the 1575 is a 1570 with date module).
Red Flag
Any movement outside the 1570/1575 family is a serious authentication concern

Case

There are two main case profiles associated with the DRSD. Condition matters — thick lugs and crown guards are what you want to see. Many of these watches have been used, so some wear is expected, particularly where the serial and model numbers rub against the bracelet and at the bottom of the case.

Case · Two Types
Thin Case
Similar profile to the Submariner — associated with the 1.6–2.2 million serial range
Thick Case
Standard profile — associated with the remainder of production from 2.2 million onward
  • Thick lugs and crown guards are ideal — sharp edges are a bonus
  • Unpolished case with original sharp edges preferred but not required
  • Pointed and pin-point lugs are not desirable — indicates excessive polishing
  • Some wear around serial and model number areas is expected and acceptable
  • Even a previously polished case should retain reasonable lug thickness

Crystal

Superdome throughout the full production run. An original superdome crystal is a genuine bonus — they can still be found, and seeing one in place adds to the overall presentation of the watch. Not a deal-breaker if replaced, but always worth noting.

Crystal · Specification
Type
Superdome — throughout the entire production run
Original Crystal
A genuine bonus if present — original domes can still be sourced but are not always found in place

Crown & Tube

Early examples carried a tube without the external rubber ring, and a crown without dots. This is a bonus to have, but not a requirement. A properly functioning, waterproof watch in good working condition and recently serviced is always more important than period-correct crown originality.

Crown & Tube · Notes
Early Configuration
Tube without external rubber ring — crown without dots
Priority
A waterproof, recently serviced watch in good working order outweighs period-correct crown originality

Bracelet

Bracelet · Reference Guide
Early Watches
9315 with 280 or 380 end links — good condition acceptable
Later Watches
93150 with 580 or 585 end links — good condition acceptable
PPDRSD
“Pat. Pend.” extension links are a desirable bonus — but not required, as this likely was not Rolex’s original intent

Collectability & Pricing

The DRSD continues to gain in popularity and remains a must-have for serious collectors. Pricing is a moving target — it changes daily based on market conditions, rarity, and condition. Box and original papers can add between 20–50% to the value of any example.

Box and original papers can add between 20–50% to the value of a DRSD. Always factor this in when comparing prices.

The desirability ranking below reflects the collector consensus for regular production examples:

  1. Early 1665 — Mark 0, Mark I, with or without HEV valve
  2. PPDRSD — Mark I (Patent Pending)
  3. PPDRSD — Mark II (Patent Pending)
  4. Mark II — Chocolate / tropical dial
  5. Mark II — Standard
  6. Mark III — Less commonly seen than even the Mark II
  7. Mark IV — Standard production
  8. Mark IV Transitional — Curved caseback examples
  9. Mark V and Mark VI — To complete the full set

Pricing follows rarity and desirability. Within any tier, condition is the dominant variable — an unpolished example with original dial and box/papers will always command a significant premium over a polished, serviced example with a replacement dial.