# 2025 Rolex Sea-Dweller 126603 Black 18k Yellow Gold & Steel Oyster Box Papers

- Link: https://palazzowatches.com/product/rolex-sea-dweller-126603-black-dial-two-tone/
- Published: 2026-04-23T10:05:28-04:00
- Author: Michael Martucci

## Details

- Stock number: F4VUT
- Availability: Out of stock
- Condition: Pre-owned
- Brand: Rolex
- Reference: 126603
- Case Material: Yellow Gold & Steel
- Movement: 3,235
- Case Size: 43mm
- Year: 2025
- Dial Color: Black
- Offered by: Palazzo Watches & Gems, Jersey City, NJ

The Rolex Sea-Dweller reference 126603 is the first and only two-tone Sea-Dweller
in the model’s history, introduced at Baselworld 2019 as a complete departure from
nearly five decades of all-steel professional dive watch tradition. The 43mm Oyster
case combines Oystersteel with 18k yellow gold on the bezel, winding crown, and 
bracelet center links — what Rolex terms Yellow Rolesor — while preserving every
credential that has defined the Sea-Dweller since its 1967 origin alongside professional
saturation divers. Rated to 1,220 meters of water resistance, the case carries the
helium escape valve that permits safe decompression after extended saturation, paired
with the unidirectional 60-minute Cerachrom ceramic bezel finished with yellow gold
numerals. The black lacquered dial is fitted with large Chromalight applied indices
and Mercedes hands for instant low-light reading, while the Cyclops magnifier over
the date window at three o’clock marks one of the most significant cosmetic departures
in the Sea-Dweller line. Powered by the in-house Rolex Caliber 3235, a Superlative
Chronometer with paramagnetic blue Parachrom hairspring, Chronergy escapement, Paraflex
shock absorbers, and approximately 70 hours of power reserve. Worn on the matching
Yellow Rolesor Oyster bracelet with Glidelock and Fliplock extension systems. 2025
production, pre-owned in excellent condition with full Rolex box and papers.