Rolex
Rolex Sea-Dweller 1665
The Rolex Sea-Dweller (reference 1665) is a 40 mm stainless Steel watch with a black dial. It runs on the automatic caliber 1575 and is water resistant to 610 m. It was introduced in 1967.
Specifications
Case
- Reference
- 1665
- Collection
- Sea-Dweller
- Case size
- 40 mm
- Case material
- Stainless Steel
- Crystal
- Acrylic
- Water resistance
- 610 m
Dial and bezel
- Dial
- Black
- Bezel
- Rotating 60-minute
Movement
- Movement
- Automatic
- Caliber
- 1575
Production
- Production
- 1967 – today (discontinued)
Dial versions
This reference was made with these dials and finishes.
1665 Double Red Mark 1
Mark 1; two red text lines (Sea-Dweller / Submariner 2000) · “Double Red”
1665 Double Red Mark 2
Mark 2; red text printed on dial, smaller Submariner 2000 text · “Double Red”
1665 Double Red Mark 3
Mark 3; open crown guard per 41Watch · “Double Red”
1665 Double Red Mark 4
Mark 4; closed 6, most common DRSD dial · “Double Red”
1665 Double Red Mark 2
Mark 2; tropical (browned) dial, thin case · “Double Red / Tropical”
1665 Great White Mark 1
Mark 1; white text, straight (non-italic) ft marking · “Great White”
1665 Great White Mark 2 'Rail Dial'
Mark 2 'Rail Dial'; aligned Cs in CHRONOMETER / CERTIFIED · “Great White / Rail Dial”
1665 Great White Mark 3
Mark 3 · “Great White”
1665 Great White Mark 4
Mark 4 · “Great White”
1665 Great White Tiffany & Co. retail-stamped dial
Tiffany & Co. retail-stamped dial · “Great White”
1665 Single Red
Prototype; only Sea-Dweller in red, Submariner in white; 500m/1650ft · “Single Red”
1665 Comex Comex Mark 1 'Rail Dial'
Comex Mark 1 'Rail Dial'; COMEX logo replaces Sea-Dweller text; original dial · “Comex”
1665 Comex Comex Mark 2 service dial
Comex Mark 2 service dial · “Comex”
How it compares within the Sea-Dweller family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 1665 (This watch) | 40 mm | Stainless Steel | Black | 1575 | 1967– |
| 116600 | 40 mm | Oystersteel | Black | 3135 | 2014–2017 |
| 116660 | 44 mm | Oystersteel and titanium | — | 3135 | 2008–2018 |
| 126067 | 50 mm | RLX titanium | Black | 3230 | 2022–2025 |
| 126600 | 43 mm | Oystersteel | Black | 3235 | 2017– |
| 126603 | 43 mm | Yellow Rolesor | Black | 3235 | 2019– |
| 126660 | 44 mm | Oystersteel and titanium | — | 3235 | 2018–2022 |
| 136660 | 44 mm | Oystersteel and RLX titanium | — | 3235 | 2022– |
| 136668LB | 44 mm | 18k yellow gold | Blue | 3235 | 2024– |
About the Sea-Dweller family
The Sea-Dweller was introduced in 1967 with ref. 1665 for professional saturation divers, adding a helium escape valve and a deeper water rating to the Submariner design. The ref. 16600 continued the line from the late 1980s, and the Rolex Deepsea joined in 2008 with its Ringlock case system and much greater depth rating.
In 2017 the Sea-Dweller grew to 43 mm with ref. 126600, which brought back a line of red text on the dial and added a Cyclops lens. A Rolesor version, ref. 126603, followed. The catalog also covers Deepsea references such as the 126660 and 136660, the yellow gold 136668LB and the RLX titanium Deepsea Challenge ref. 126067. Dealers note the dial version and, on Deepsea models, the dial colour.
Quick answers
- What size is the Rolex Sea-Dweller 1665?
- The Rolex Sea-Dweller 1665 has a 40 mm case.
- What movement does the Rolex Sea-Dweller 1665 use?
- It uses the automatic caliber 1575.
- How water resistant is the Rolex Sea-Dweller 1665?
- It is water resistant to 610 metres.
- Is the Rolex Sea-Dweller 1665 still in production?
- Discontinued.
- When did the Rolex Sea-Dweller 1665 come out?
- It was introduced in 1967.
- What is the Rolex Sea-Dweller 1665 made of?
- The case is stainless Steel.
Catalog facts checked October 2026.