Sea-Dweller · Nickname guide
The first Sea-Dweller — two lines of red dial text, the prized DRSD.
Reference
1665
Years
1967–1977
Also called
DRSD
Bezel / dial
Black, two lines of red text
Below: what makes the Double Red (1665) distinctive, what to verify before buying, and how it fits the Naples collector scene.
The 1665 introduced the Sea-Dweller's helium escape valve and deep-dive rating. For its first decade the dial printed two lines of red text, and collectors track four dial “Mark” variants by their typography. Around 1977 Rolex switched to all-white text — the Great White — making the red-text DRSD the scarcer, more sought version.
What to verify
In Naples
The DRSD is a blue-chip vintage diver and a serious purchase that warrants specialist authentication before any money moves, wherever you buy. In Naples it is an estate-and-private-sale watch; never judge a Double Red on the dial photo alone.
We are an independent reference, not a dealer: we cannot sell you a Double Red or appraise one. What we can do is help you read the reference and know what separates a correct example from a cobbled-together one.
Double Red FAQ
It is the reference 1665, the first Sea-Dweller (1967–1977), with two lines of red text on the dial. Later examples switched to white text, becoming the “Great White.”
It is the original Sea-Dweller, made for about a decade with distinctive red text and several collectible dial “Mark” variants. Originals are scarce and historically important.
Both are the reference 1665. The Double Red has two lines of red dial text; the later Great White has all-white text. The red version is generally the more sought.
Naples has an active Rolex market through retail, boutiques, and private sales — but Naples Rolex is an independent reference, not a dealer. We don't sell or broker watches. Use this guide to verify a Double Red before you buy, wherever you find it.