









Rolex Sea-Dweller 126603 Two-Tone Steel & Yellow Gold 43 mm
$ 300 – $ 850Price range: $ 300 through $ 850
Striking two-tone Rolex Sea-Dweller with black dial and premium Rolesor finish.Professional deep-sea diver with robust build and classic Rolex craftsmanship.
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Overview
The Rolex Sea-Dweller 126603 blends rugged dive capability with luxurious two-tone Rolesor design. Its 43 mm Oystersteel and yellow gold case delivers a bold presence and excellent durability. The black dial provides superb legibility and pairs beautifully with gold accents throughout. Cerachrom black ceramic bezel and Chromalight luminescence ensure clarity and performance. Powered by a Swiss automatic movement with ~70-hour power reserve for reliable precision. Perfect for collectors seeking a with both professional diver specs and elevated style.
| Brand | Rolex |
| Model | Sea-Dweller |
| Reference Number | 126603 |
| Case size | 43 MM |
| Case material | Stainless Steel & 18K Yellow Gold (Rolesor) |
| Crown | Triplock Screw-down |
| Case back | Solid |
| Bezel | Black Cerachrom Ceramic (Unidirectional) |
| Crystal | Sapphire Crystal with Cyclops |
| Dial | Black |
| Dial markers | Chromalight Luminescent Markers |
| Lume | Yes |
| Movement | Swiss Automatic |
| Caliber | 3235 |
| Functions | Hours, Minutes, Seconds, Date |
| Water-Resistance | 1,220 Meters / 4,000 Feet |
| Strap Type | Oyster Bracelet (Steel & Yellow Gold) |
| Color | Two-Tone Steel & Gold |
| Clasp Type | Oysterlock Safety Clasp with Glidelock |
| Dot-Perfect (Swiss Variant Only) | Precisely finished detailing with clean, consistent alignment. Flawless typography, sharp engraving depth, and premium surface finish. Balanced case proportions with a comfortable wrist feel. High-precision build with regulated timekeeping for stable performance. |











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