Rolex
Rolex Sea-Dweller 43 126600
“Red Sea-Dweller (first-series red text)”
The Rolex Sea-Dweller 43 (reference 126600) is a 43 mm Oystersteel watch with a black dial. It runs on the automatic caliber 3235 with a 70-hour power reserve and is water resistant to 1220 m. It was introduced in 2017 and is still in production.
Specifications
Case
- Reference
- 126600
- Nickname
- Red Sea-Dweller (first-series red text)
- Collection
- Sea-Dweller
- Case size
- 43 mm
- Case material
- Oystersteel
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 1220 m
- Bracelet / strap
- Oyster, Oystersteel bracelet
Dial and bezel
- Dial
- Black
- Bezel
- Black Cerachrom unidirectional 60-min dive bezel
Movement
- Movement
- Automatic
- Caliber
- 3235
- Power reserve
- 70 hours
- Frequency
- 28,800 vph
- Jewels
- 31
- Functions
- Date, Dive bezel, Helium escape valve
Production
- Production
- 2017 – today (current)
Dial versions
This reference was made with these dials and finishes.
126600 Red Sea-Dweller
126600-0001
Red text · “Red Sea-Dweller / Single Red”
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 |
|---|---|---|---|---|---|
| 126600 (This watch) | 43 mm | Oystersteel | Black | 3235 | 2017– |
| 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 |
| 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– |
| 16660 | 40 mm | Stainless Steel | Black | 3035 | 1978–1989 |
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 43 126600?
- The Rolex Sea-Dweller 43 126600 has a 43 mm case.
- What movement does the Rolex Sea-Dweller 43 126600 use?
- It uses the automatic caliber 3235, with a 70-hour power reserve.
- How water resistant is the Rolex Sea-Dweller 43 126600?
- It is water resistant to 1220 metres.
- Is the Rolex Sea-Dweller 43 126600 still in production?
- Yes, it is a current reference.
- When did the Rolex Sea-Dweller 43 126600 come out?
- It was introduced in 2017.
- What is the Rolex Sea-Dweller 43 126600 made of?
- The case is Oystersteel. Bracelet or strap: Oyster, Oystersteel bracelet.
- What is the Rolex Sea-Dweller 43 126600 nicknamed?
- Dealers and collectors call it the “Red Sea-Dweller (first-series red text)”.
Catalog facts checked September 2026.