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Rolex

Rolex Deepsea 136668LB

The Rolex Deepsea (reference 136668LB) is a 44 mm 18k yellow gold watch with a blue dial. It runs on the automatic caliber 3235 with a 70-hour power reserve and is water resistant to 3900 m. It was introduced in 2024 and is still in production.

Specifications

Case

Reference
136668LB
Collection
Sea-Dweller
Case size
44 mm
Thickness
17.7 mm
Case material
18k yellow gold
Case shape
Round
Crystal
Sapphire
Water resistance
3900 m
Bracelet / strap
18k yellow gold

Dial and bezel

Dial
Blue
Bezel
Blue Cerachrom, gold PVD numerals

Movement

Movement
Automatic
Caliber
3235
Power reserve
70 hours
Frequency
28,800 vph
Functions
Date

Production

Production
2024 – today (current)

Dial versions

This reference was made with these dials and finishes.

  • 136668LB Blue

    136668LB-0001

    Lacquer; powdered yellow DEEPSEA text

How it compares within the Sea-Dweller family

Side by side with other references in the same collection, from the catalog.

ReferenceSizeMaterialDialCaliberYears
136668LB (This watch)44 mm18k yellow goldBlue32352024–
11660040 mmOystersteelBlack31352014–2017
11666044 mmOystersteel and titanium—31352008–2018
12606750 mmRLX titaniumBlack32302022–2025
12660043 mmOystersteelBlack32352017–
12660343 mmYellow RolesorBlack32352019–
12666044 mmOystersteel and titanium—32352018–2022
13666044 mmOystersteel and RLX titanium—32352022–
1666040 mmStainless SteelBlack30351978–1989

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 Deepsea 136668LB?
The Rolex Deepsea 136668LB has a 44 mm case, 17.7 mm thick.
What movement does the Rolex Deepsea 136668LB use?
It uses the automatic caliber 3235, with a 70-hour power reserve.
How water resistant is the Rolex Deepsea 136668LB?
It is water resistant to 3900 metres.
Is the Rolex Deepsea 136668LB still in production?
Yes, it is a current reference.
When did the Rolex Deepsea 136668LB come out?
It was introduced in 2024.
What is the Rolex Deepsea 136668LB made of?
The case is 18k yellow gold. Bracelet or strap: 18k yellow gold.

Catalog facts checked October 2026.