Shop our curated selection of second-hand Rolex Sea-Dweller watches. As Rolex’s professional saturation-diving companion, the Sea-Dweller builds on the Oyster case with a helium escape valve to safely release trapped gas during decompression and protect the watch at depth. If you’re looking for a robust tool watch with everyday versatility, a pre-owned Sea-Dweller is a superb choice.
BQ Watches constantly refreshes its Sea-Dweller inventory, from classic 40mm references to modern 43mm models, with Deepsea pieces occasionally available for those who want the largest case size. Every watch is carefully inspected and presented with clear details on condition and what’s included.
However you prefer to purchase your Sea-Dweller - online or in person - BQ Watches makes it simple. Explore our range of luxury watches, and if the exact Sea-Dweller you want isn’t listed, we can source it quickly.
Looking to move on from a watch? You can sell your luxury watch to us for a fair price or part‑exchange towards a Sea-Dweller. We also provide valuation services and optional finance on selected pieces.
Tell us what you need via the form below or visit our London showroom for hands-on advice from our watch experts.
Launched in 1967, the Rolex Sea-Dweller was engineered for professional divers. Its helium escape valve allows built‑up gas to vent during decompression, helping the watch maintain water resistance at extreme depths (rated to 1,220 metres on Sea‑Dweller models).
Rolex later introduced the Deepsea, designed for even greater depth ratings (up to 3,900 metres). While aesthetics remain purpose‑driven - high legibility, robust cases and bracelets - recent Sea‑Dweller references also include a yellow Rolesor (two‑tone) option alongside classic Oystersteel.
Discover a rotating selection of modern and vintage Rolex Sea‑Dweller models at BQ Watches. From classic tool‑watch references to scarce collector pieces, our listings make it easy to review condition, included papers, original box and other details before you buy.
Our pre-owned Rolex watches also sit alongside legacy names such as Omega, Audemars Piguet and Cartier, so you can compare styles in one place.
Prefer to see a second-hand Rolex Sea‑Dweller up close? Visit our London showroom, or contact us for high‑resolution media and guidance from our team.
Can’t see the exact configuration you want? We’ll source your preferred pre-owned Rolex Sea‑Dweller or, where relevant, a Deepsea alternative. Tell us your ideal dial, bezel and bracelet, and we’ll do the rest.
Many collectors seek the special Deepsea with a blue‑to‑black gradient dial commemorating a historic solo dive, while others prefer the understated look of the Sea‑Dweller. Features you may encounter include:
Our Sea‑Dweller range offers something for every taste - whether you prefer the classic 40mm profile or the presence of the modern 43mm case. Choose from Oystersteel or two‑tone options, with expert guidance on fit and wear. Not sure where to start? Tell us your wrist size and style preferences, and our team will recommend suitable second‑hand Rolex Sea‑Dweller models.
