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Rolex Sea-Dweller Rolex Sea-Dweller ‘Triple Six’ – Reference 16660 (1991)
Ref. no. 16660
Rolex Sea-Dweller Rolex Sea-Dweller ‘Triple Six’ – Reference 16660 (1991)
Ref. no. 16660
+ € 99 insured shipping
Available
Ready to ship in 1-3 days
100% Authentic watches- Buyer protection with ESCROW-service
- Customers rate Wristler 4,8/5
- Safe pick-up or delivery, Warranty & Easy returns
- Real people, real service
Heritage Timepieces AB
Certified seller since March 2026
Description
Heritage Narrative The Rolex Sea-Dweller reference 16660, affectionately known among collectors as the “Triple Six”, marked a major technological leap for Rolex’s professional diving line. Introduced in the early 1980s, it bridged the gap between the vintage 1665 and the modern Deepsea, introducing for the first time a sapphire crystal, an upgraded Calibre 3035 movement, and a significantly improved 1,220-meter (4,000 ft) depth rating — double that of its predecessor. This 1991 example features a 40 mm stainless steel Oyster case, complete with the signature helium escape valve, ensuring its reliability under the most extreme decompression conditions. The matte black dial is paired with luminous hour markers and Mercedes hands for legibility in low-light environments. A defining model in the Sea-Dweller lineage, the 16660 combines Rolex’s early tool-watch DNA with the durability and precision that continue to define the brand’s professional ethos. Technical Specifications Reference:16660 Year:1991 Movement:Rolex Calibre 3035, automatic, chronometer-certified, quickset date, ~48-hour power reserve Case:40 mm stainless steel Oyster case with helium escape valve and screw-down Triplock crown Bezel:Unidirectional rotating bezel with black aluminium insert, 60-minute graduated scale Crystal:Sapphire crystal with Cyclops date magnifier Dial / Hands:Black dial with luminous hour markers and Mercedes-style hands Bracelet / Clasp:Stainless steel Oyster bracelet with folding clasp and diver’s extension Water resistance:1,220 m / 4,000 ft (factory rating) Condition & Inclusions Overall grade:Pre-owned — excellent vintage condition with minor signs of wear Service status:Movement tested and performing within Rolex specifications Set:Watch only — no box or papers Shipping & Logistics Stored off-site and shipped fully insured within 1–3 business days. Worldwide shipping available; buyer responsible for any import duties or taxes. Shipping & Returns Complimentary insured worldwide shipping and a 14-day return window (watch must be returned in the same condition supplied). Each timepiece is authenticated, regulated, and professionally prepared before dispatch. All shipments include tracking, secure packaging, and full insurance coverage.
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Rolex Sea-Dweller Rolex Sea-Dweller ‘Triple Six’ – Reference 16660 (1991)
Ref. no. 16660
+ € 99 insured shipping
Available
Ready to ship in 1-3 days
- 100% Authentic watches
- Buyer protection with ESCROW-service
- Customers rate Wristler 4,8/5
- Safe pick-up or delivery, warranty & easy returns
- Real people, real service
Heritage Timepieces AB
Certified seller since March 2026
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Ref. no. 16660
Rolex Sea-Dweller
Rolex Sea-Dweller ‘Triple Six’ – Reference 16660 (1991)
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Ref. no. 16660
Rolex Sea-Dweller
Rolex Sea-Dweller ‘Triple Six’ – Reference 16660 (1991)
Ref. no. 16660
Rolex Sea-Dweller
Rolex Sea-Dweller ‘Triple Six’ – Reference 16660 (1991)
Ref. no. 16660
Rolex Sea-Dweller
Rolex Sea-Dweller ‘Triple Six’ – Reference 16660 (1991)
- New / unworn
- The watch has not been worn and is in new condition. It may come directly from an authorised dealer or the brand itself, or it may have been recently traded without being worn.
- Pre-owned
- The watch has previously been traded and may show light to visible signs of wear, depending on the stated condition.
The condition is determined by the seller based on visual inspection and functional assessment in accordance with Wristler guidelines.
- New
- Sourced directly from an authorised dealer or the brand. Unpolished and free from signs of wear. Delivered with full manufacturer’s warranty. The warranty period begins upon registration with the brand and may have already started prior to delivery to the final buyer.
- Unworn
- Previously traded but never worn. May qualify as New Old Stock (NOS). Free from visible signs of wear. Does not imply anything about remaining manufacturer’s warranty or the presence of factory stickers.
- Very good
- Minor signs of wear such as hairline marks or small surface scratches. Case, bezel, and bracelet retain sharp edges and overall form. May have been professionally polished without affecting the original contours. Fully functional mechanically.
- Good
- Visible signs of wear such as scratches, small dents, or light bracelet stretch. May have been professionally polished. Fully functional mechanically.
- Fair
- Clearly visible signs of wear, including scratches, dents, or noticeable bracelet or clasp wear. Servicing may be recommended in the future. Fully functional unless otherwise stated.
All watches offered on Wristler are fully functional and meet normal expectations for mechanical performance unless explicitly stated otherwise. The seller provides a guarantee on proper mechanical operation.
Water resistance cannot be guaranteed for older watches unless specifically indicated.
If you have any doubts about the condition, carefully review the photos and description. You may contact the seller via chat to request additional photos or video material to better assess the watch before purchase.