| Reference | 126603 |
| Material | Yellow Rolesor - combination of Oystersteel and yellow gold |
| Diameter | 43 mm |
| Movement | Perpetual, mechanical, self-winding |
| Dial | Intense black |
| Power Reserve | Approximately 70 hours |
| Model Case | |
| Oyster Architecture | Monobloc middle case, screw-down case back and winding crown |
| Bezel | Unidirectional rotatable 60-minute graduated, scratch-resistant Cerachrom insert in black ceramic, numerals and graduations coated in gold |
| Winding crown | Screw-down, Triplock triple waterproofness system |
| Crystal | Scratch-resistant sapphire, Cyclops lens over the date |
| Water resistance | Waterproof to 1,220 metres / 4,000 feet, helium escape valve |
| Calibre | 3235, Manufacture Rolex |
| Oscillator | Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers |
| Escapement | Chronergy with optimized energy efficiency |
| Winding | Bidirectional self-winding via Perpetual rotor |
| Bracelet | Oyster, three-piece solid links |
| Bracelet Material | Yellow Rolesor - combination of Oystersteel and yellow gold |
| Clasp | Folding Oysterlock safety clasp with Rolex Glidelock extension system |
| Details | Highly legible Chromalight display with long-lasting blue luminescence |
| Certification | Superlative Chronometer (COSC + Rolex certification after casing) |
| STYLE | Men |
Ceramic Bezel and Luminescent Display
The 60-minute graduated, unidirectional rotatable bezel of the Sea-Dweller enables divers to precisely and safely monitor their dive and decompression times. It is equipped with a patented black Cerachrom bezel insert manufactured by Rolex in a virtually scratchproof ceramic whose colour is unaffected by ultraviolet rays. The graduation is coated via PVD (Physical Vapour Deposition) with a thin layer of gold. The sleek black dial features large Chromalight hour markers and hands, filled with luminescent material that emits a long-lasting blue glow for excellent legibility in dark conditions.
Intense black dial
The black dial of the Sea-Dweller has the large hands and indices reserved for Rolex professional models. The dial bears the name Sea-Dweller inscribed in a yellow hue, echoing the colour of the yellow gold. When the Sea-Dweller was updated in 2017, this lettering was in red, in reference to the original model. The innovative Chromalight display on the dial pushes back the boundaries of visibility in dark environments. Its distinctive blue glow lasts up to eight hours with a uniform luminosity, practically twice as long as that of standard luminescent materials.
Yellow Rolesor
Gold is coveted for its lustre and nobility. Steel reinforces strength and reliability. Together, they harmoniously combine the best of their properties. A true Rolex signature, Rolesor has featured on Rolex models since the early 1930s, and was trademarked as a name in 1933. It is one of the prominent pillars of the Oyster collection.Model Availability
