Rolex crown for 6263

[the collector]

I want to fit a genuine Rolex crown to a 6263 case, i have been doing some research and now i am a bit confused about the reference number of the Rolex crowns. Please help me to finally clarify what refernce the correct crown for a 6263 has.... Thanks

[the collector]

@nanuq as far as i know the original 6263 used to acrry a twinlock crown and as these crowns where worn out they would be replaced with the newer triplock crown.... but the question is which triplock?

[leitztozeiss]

Triple lock crown, 7mm tube. Part numbers are:

Crown: 24-703

Case Tube: 24-7030

This is according to info obtained from a search a TRC - CLICK HERE to read. I hope this helps. I'd like to install a gen on my 6263 also.

Edited April 24, 2006 by leitztozeiss

[the collector]

correct it is a 7mm, but as i am going to order it i need a ref number....

[leitztozeiss]

Collector, I modded my response above. It should help.

[ubiquitous]

The 6263/5's all had Triplocks- The Cosmographs with Oyster signed dials were outfitted with Triplocks from the start, not Twinlocks. Twinlockers were the 6239/6240, etc with non-Oyster signed dials.

As such, any Triplock 7mm crown is sufficient for a 6263/5, as it is likely these have been replaced during a service with the most recent variation. 24-703 should work nicely.

[Guest avitt]

I think that this is germane...Here is a comparison between two of the aftermarket Triplock tubes. On the left is the version from Cousins (Clockspares.com), and on the right is the Helfands version (please excuse the dried lock-tight). I can't comment on the quality, other than to say that I've already torqued the threads off one of the Helfands...my fault entirely.

[pitimany]

Do anybody know a US source for Triplock tubes (Clockspares is Uk), please PM me ?

I tryed Helfands, way too short. they can be secure more adding glue, but no my choise.

[Guest avitt]

Do anybody know a US source for Triplock tubes (Clockspares is Uk), please PM me ?

I tryed Helfands, way too short. they can be secure more adding glue, but no my choise.

I'm in the US, and Cousins delivered within a week of my order, with reasonable shipping costs. (However, I'm open to alternate source as well).

[Sherrington]

The pre-Daytonas came with Twinlock crowns and pump pushers... here's a good photo:

Hey Bob. That's in mint condition for one of your watches. Have you not aged it yet?

[the collector]

@Avitt, that looks like a damn nice tube.... good price aswell.... thanks for the info

[Guest avitt]

@collector, thought you might want to see how that tube looks on a Daytona case:

[the collector]

@Avitt. nice... thanks alot. BTW is that a gen case or a aftermarket? Do you by any chance know if the 6263s carrry gaskets for the crystal? I want to make mine waterproof so i do not have to take it off when i go for a swim....

[Guest avitt]

That case is an aftermarket.

It's my understanding that vintage Daytona's don't use gaskets around the crystal. You could probably use one...I'd suggest a flat gasket, with in internal diameter of about 29.5mm. I'm not sure what this would do to the watch's profile.

Another suggestion (which comes from Nanuq) would be to spread a little silicone grease around the lip of the case, before fitting the crystal.

[pitimany]

Fully aggre with Nanuq

I have try to make and test my DW water proof, and only made about 0.1 atm (1.3 meter ) during water test, a tiny bubble started to form next to upper pusher.

This make my watch water proof, but no water resistant

P

Correct, most vintage don't have a gasket there, like the sapphire crystals use. It's a raised lip over which the crystal fits, then the retaining ring squeezes the crystal down onto the lip. A little grease in the two interfaces helps.

The exception to this rule is the 1665 Sea-dweller. Beneath the crystal retaining ring there is a machined groove into which an o-ring fits. The ring presses down on the o-ring and "inward" against the crystal.

If it were up to me, I wouldn't take a chrono in the water. Just too many places for it to leak, "Oyster" designated or not. I save the swimming for my dive watches.

Edited April 26, 2006 by pitimany

[the collector]

Nanuq you are quite right, better to use the right watch for the right purpose....

@Avitt, that is a beautiful case.... is that a gen tube that is fitted or the cousins tube?

BTW has anyone seen any heavy 78350 for 6263 for sale?

Edited April 27, 2006 by the collector

[Guest avitt]

Thanks collector. That's the Cousins tube. I'm impressed with the quality. BTW, theres no need for a special tool to install this tube...a T8 Torx bit does the job perfectly.

[the collector]

I want to get hold of a nice steel bezel for my other project.... do you guys know where i could get hold of a good one. I have been looking around a bit and noticed that usually the numbers on the steel bezels are too bold.... How are DW´s steel bezels?

[Guest avitt]

Unfortunately, the DW 200 Units/Hr steel bezel is discontinued, due to lack of demand....(I know, I thought the same thing...)

[the collector]

hmmmm..... what to do what to do...??

Anyway how is DW´s acrylic bezel?

[the collector]

.

Edited April 27, 2006 by the collector

[the collector]

@Avitt, i just got it comfirmed that there are DW steel bezels available...

[halley]

Thanks collector. That's the Cousins tube. I'm impressed with the quality. BTW, theres no need for a special tool to install this tube...a T8 Torx bit does the job perfectly.

I have what appears to be helfand tube and the T8 Torx does not work, even a T10 is too small for the inner tube, so I'm off buying the real tool!

[the collector]

@halley what tube are you inserting, genuine or aftermarket?

[Guest avitt]

@Halley, it's never a bad idea to get the right tool for the job...But I should have given you a bit more information. Here is a picture of the bits that I use.

A Mibro Torx T9 insert bit is perfect for the helfands tube, while a T8 is the one for the Cousins tube (hmm...I guess the Cousins has longer threads AND a thicker wall). It's really the shoulder of the bits that snug onto the tubes. The teeth do pass through, like you've mentioned. Here's an end shot:

These really work well for me. And holding the bits by hand helps to ensure that I don't overtorque anything.