Rolex 1665 Sea-Dweller Mk 1 circa 1971

SOLD

A beautiful, original owner vintage Rolex 1665 ‘Mk1’ ‘Patent Pending’ Sea-Dweller with box, punched hole papers (x2), original purchase receipt, service papers & hang tags.

The Rolex 1665 patent pending is the daddy of the modern Rolex Sea-Dweller. The so called Mk 1 dials (or ‘double pinks’ as they are often referred to) are found on model ref. 1665 Sea-Dwellers with patent pending engraved case backs which were issued in 3 small batches with serials 2,117,XXX, 2,128,XXX or 2,228,XXX between 1967-1970 for the purposes of professional testing & development of the new Helium Gas Escape Valve, pre patent approval. On very rare occasions the remaining unused watches from the original batches, are known to have been delivered to Rolex retailers as the 1st examples of the new model ref. 1665 Rolex Sea-Dweller launched to the public circa 1971. This particular example acquired indirectly from the family of the original owner is such a watch and has been preserved along with its original box, tags, purchase receipt, double punched papers, service history and provenance. A truly exceptional collector’s piece.

Case:
Original & in excellent condition with matching case back numbers. Lightly polished during Rolex service.

Dial:
Original & in excellent condition with warm patina

Hands:
Original & in excellent condition, service replacement insert

Bracelet:
9315 with PAT.PENDING divers extension

Please refer to the following articles for further related information on the model ref. 1665 Sea-Dweller with patent pending case back & Mk 1 double pink dials.

https://www.vintage-db.com/tag/patent-pending/

https://www.vintage-db.com/pair-patent-pendings/

BRAND:

ROLEX

MODEL:

SEA-DWELLER

MODEL REF:

1665

SERIAL:

2,128,XXX

YEAR:

1970

DIAL TYPE:

MATT ‘DOUBLE PINK’ MK 1

MATERIAL:

STAINLESS STEEL

CASE:

40MM

PAPERS:

BOX / PAPERS / SERVICE PAPERS

OUR REF:

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