Rolex - Sea-Dweller - 126603 - 2020

The Sea-Dweller, originally developed in 1967 for professional saturation divers, represents the pinnacle of Rolex's deep-sea engineering. The 126603 in Rolesor — Rolex's signature combination of Oystersteel and 18ct yellow gold — brings a luxurious dimension to this formidable tool watch without compromising its professional credentials.

The 43mm case combines Oystersteel and 18ct yellow gold construction with a unidirectional rotating bezel featuring a black Cerachrom insert with 60-minute graduated scale in gold PVD coating. The helium escape valve at nine o'clock allows controlled gas release during decompression. A sapphire crystal with Cyclops lens protects the dial, and the case is rated to an extraordinary 1,220 metres water resistance.

The black dial carries large Chromalight luminous hour markers and hands in 18ct yellow gold surrounds, providing exceptional legibility in the darkest conditions. A date aperture sits at three o'clock beneath the magnifying Cyclops lens.

Inside, the calibre 3235 automatic movement houses 31 jewels, beats at 28,800 vibrations per hour, and delivers 70 hours of power reserve. Superlative Chronometer certified, tested to -2/+2 seconds per day.

The three-piece Oyster bracelet in Oystersteel and 18ct yellow gold is secured by an Oysterlock safety clasp with Rolex Glidelock extension system, allowing fine adjustment without tools.

Excellent condition from 2020 means minimal wear — expect light surface marks on the case and bracelet, maintained in nearly new condition. Comes complete with original box and original papers. Manufacturer's warranty expired — covered by Pride and Pinion one-year warranty.

A professional dive watch with the presence of a luxury timepiece — engineered for the ocean floor, refined for everyday wear.