Rolex Sea-Dweller 16660 Matte Dial
Vintage

Rolex Sea-Dweller 16660 Matte Dial

By Baron - Mr Red · Oct 4, 2009 · 15 replies
Baron - Mr Red
WPS member · Rolex forum
15 replies4247 views16 photos
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Baron - Mr Red introduces his new Rolex Sea-Dweller Ref. 16660, a significant addition to his collection that offers a distinct character from his usual chronographs. This post delves into the watch's presence, its historical context, and poses a fascinating question about the evolution of the helium escape valve, inviting community insights.

New addition to the team. Bought it a couple of weeks ago. Again, a different strand to the collection (and i have to say a very welcome strand). I am still very swayed to the Daytonas and chronographs generally, but having a few diving watches in the squad offers variation in a way that I didnt expect to enjoy so much. 16660 Matt dial. The 666, Nicolas....Revelations 13!!!

Supposedly only 50 or so produced for Comex, and only 35 have ever been back to Rolex for service. Its sitting on my wrist now. There is a depth to the watch that gives it real presence. Its not a blingy watch in any sense of the word, and presence is used here in a way that is not something that shouts. Just something that "is". My son is away at the moment so the photography is not up to scratch, and the scans do not do it justice. All the same, very happy over here! Still thinking about a DRSD to keep this one company.

Question on the helium valve. As i understand it, the helium valve was introduced in order to allow helium to escape the watch on decompression. The prior inability for the helium to escape led to a number of watches imploding through the decompression process as the helium could not escape. Does anyone have any history surrounding the evolution of the helium valve? Fascinating that Rolex overcame the difficulty of allowing watches to submerge to stunning depths, but encountered problems on watches imploding on decompression. Or do i have my history wrong?


















This message has been edited by DrStrong on 2009-10-04 10:59:13 This message has been edited by amanico on 2009-10-08 23:51:00

About the Rolex Submariner Ref. 5513

The Rolex Submariner reference 5513 is a notable example within the Submariner line, distinguished by its two-line dial and lack of a date complication. Produced for an extended period, it represents a core offering for collectors seeking a straightforward and robust tool watch. Its design emphasizes legibility and functionality, aligning with the original purpose of the Submariner series. This reference is recognized for its consistent aesthetic throughout its production run, with subtle variations in dial text and bezel inserts.

The watch features a 40mm stainless steel Oyster case, offering durability and water resistance suitable for its intended use. Powering the reference 5513 is the automatic Caliber 1520 movement, known for its reliability. The crystal is acrylic, contributing to the vintage character of the watch. The unidirectional rotating bezel, typically with an aluminum insert, allows for elapsed time measurement.

For collectors, the reference 5513 is a significant model due to its long production history and the various dial iterations, such as gilt and matte dials, which present distinct collecting opportunities. Its appeal lies in its foundational design and its position as a non-date Submariner, making it a desirable piece for those who appreciate the model's original form. The watch is often paired with an Oyster bracelet, completing its functional aesthetic.

Specifications

Caliber
Cal.1520
Case
Stainless steel
Diameter
40mm
Dial
Black gilt
Water Resist.
200m
Crystal
Acrylic

Key Points from the Discussion

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The Discussion
RY
Ryan5446
Oct 4, 2009

Congratulations on your new watch. The matte dial 666 is already nice, but a COMEX one... !!! Do you have any papers with the watch ? Do you know anything about the previous or first owner ? With regard to the helium escape valve, this feature was developped beween Rolex and Comex. What normally happens on the deep dives, there is helium penetrating the watch. Helium have the 2nd smallest molecules. During decompression the helium cannot escape a watch quick enough. The result was that the cryst

AM
amanico
Oct 4, 2009

A superb creature coming from the deepest ...Depths. And I was to post a topic about mine...Will have to wait a bit, now! Congrats, my speed Friend. Best, Nicolas

BA
Baron - Mr Red
Oct 4, 2009

I have full punched papers, Rolex service documentation, box and history...even the original tag. Comes with a host of Comex goodies, and bought from a very reliable dealer. I was very tempted by a very early reference 5513 Comex, but once on the wrist, the 666 just won it.

CH
chaser579
Oct 4, 2009

..not imploding, or at least blowing off the crystal or caseback or crown caused by the unreleased pressure. Which is why Omega dive watches have the helium valve they do. Was always surprised that the regular Submariner does not have a He escape valve. SDDS, Comex and whatnot do, smart. Question: do ALL diver's watches (Blancpain FF, etc.) have a He escape valve or a similar pressure release system? Research time...

DX
dxboon
Oct 4, 2009

Congratulations, Joe! This is a beautiful watch. You are right about the depth of the dial and, hey, why so modest about your photography? Your pix are great! The creamy patina on your markers is to die for! Enjoy the latest member of your watch family. Cheers, Daos

BD
BDLJ
Oct 4, 2009

...the HRV is only any use to those doing saturation diving. That is, diving in a "bell" filled with trimix (Oxygen, Helium, Nitrogen). The reason behind the bell is that the divers do not need to spend hours decompressing from depth, so instead they spend days/weeks at operating depth and are decompressed after completion of the task. As per above, Helium (squeaky voices) would penetrate the watch seals and at lower pressure, would expand and could pop the crystal. As to whether all diver's wat

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