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See Similar Watches In Stock Sell Or Trade With UsThe Rolex Sea-Dweller reference 126603 is the first and only two-tone Sea-Dweller in the model’s history, a watch that broke nearly fifty years of all-steel tradition when it debuted at Baselworld 2019. Combining the deep-sea engineering pedigree of the Sea-Dweller line with the visual warmth of 18k yellow gold on the bezel, winding crown, and center bracelet links, the 126603 elevates the professional dive watch into precious-metal territory while preserving every functional credential. The 43mm Oyster case is built in Yellow Rolesor and rated to 1,220 meters of water resistance, equipped with the helium escape valve that allows the watch to safely decompress during saturation diving. The unidirectional rotatable bezel features a 60-minute graduated black Cerachrom ceramic insert with gold-finished numerals. The black lacquered dial carries large Chromalight applied indices and Mercedes hands, with the date at three magnified by the Cyclops lens — the first time a Cyclops appeared on a Sea-Dweller. Powered by the in-house Rolex Caliber 3235 with paramagnetic blue Parachrom hairspring, Chronergy escapement, Paraflex shock absorbers, 70 hours of power reserve, and Superlative Chronometer certification. Worn on the matching Yellow Rolesor Oyster bracelet with Glidelock and Fliplock extension systems. Pre-owned in excellent condition, full set. Affirm financing available at checkout.
Certified by in-house experts
FedEx Priority Overnight
No-questions return policy
Lifetime for first-time clients
Every piece is examined in-house before it earns this page — movement opened and read against reference, dial and case graded honestly, papers cross-checked. What we find goes in writing on your invoice and the Palazzo certificate. 1-year movement warranty on every watch; lifetime for first-time Palazzo clients.
Complimentary, fully insured, adult signature on delivery — from our Jersey City showroom at 185 Hudson Street, Suite 2553. Domestic arrives next business day via FedEx Priority Overnight; international in two to four days via FedEx International Priority. Double-boxed, foam-cradled, no exterior branding.
Three days to inspect with your own watchmaker. If the piece is not as documented, it comes back on our label and your payment returns in full. Pieces altered, sized, or worn beyond inspection are excluded.
Affirm financing available at checkout, from $1,056/mo on this reference. Prequalification takes seconds and does not affect your credit score. Wire and card accepted for outright purchase.
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