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f-du-27 · 14 January 2010, 03:03 AM

Hi

Rolex does not want to repare my watch, I'll do it myself.

Got a new original twinlock tube from Cousin's and a tool to unscrew the used tube but ........ there are no grooves of any kind inside the old tube. The old tube is screwed though. What is the best way to take the tube out ?

Next, will the new style tube fit the case ?

Watch : Tudor 7934 from IV 1960 . Manual wind.

Thanks

Rikki · 15 January 2010, 02:36 AM

You need to use a cutting broach get the right size to fit the tube without going all the way to the other end of the case. Put broach in lightly tap with a hammer hold the broach with a strong pair of pliers in one hand and turn the case with the other. If the tube doesn't come out but start to shred tap the broach a bit more till it grabs the tube. Sometimes the tube will just not come out without broaching all the way down to the threads in which case you will have to tap the case threads. Make sure you use the correct tap if you don't case will be ruined. Good Luck Rikki

f-du-27 · 16 January 2010, 02:15 AM

Thanks Rikki

Well, I did it and to my surprise very easily. I thought it would have resisted more because of the three metals and fifty years of oxydation.

The new tube looks very white, is it still made of Maillechort or is it now made of stainless steel ?

I'll order a tool to screw the tube properly. It's quite funny I have lots of scewdrivers for glasses or to open cell-phones and don't have a single one to work on a watch. Every thing is so tinny in there !

To return to the subject shoud I use a Loctite glue or a sealent ? I guess my watch had none of those.

The tubes have two screws, one to the case and one to the crown. Have you noticed some changes in sizes along the years or has Rolex kept the same standard from the first Oyster ? (Of course, I am only considering the 6 mm crown and tube).

Rikki · 16 January 2010, 02:13 PM

The older tubes were not knurled on the inside to facilitate insertion the knurling was on the inside tube and then had to be broached out to fit the crown the new tubes are good to go once inserted. part number 24-6020 part number for tube. Rik

f-du-27 · 17 January 2010, 04:05 AM

Not sure to have understood how the old tubes were made.

Do you mean the tube was screwed and then the inside was broached to make room for the crown ?

In any case, I can send the tube tool, I just got, directly to a watch museum.

Here two picture of my watch.

Rikki · 20 January 2010, 02:07 AM

By looking at the picture it doesn't look as though the tube is in all the way make sure it snugs up against the case it has a beveled edge that helps in the waterproofing Rik

f-du-27 · 24 January 2010, 02:50 AM

Hi Rik

You are right, I still have to order the proper tool to firmly screw the tube.

I also want to order the crown, should I take 24-6000 or 24-6030 ?.

Regards

Rikki · 26 January 2010, 01:46 PM

the 24-6020 should do the trick glad it worked out. Rikki

Rikki · 29 January 2010, 12:32 PM

Sorry the crown would be a 24-600-0 s/s crown

14 January 2010, 03:03 AM	#1
f-du-27 "TRF" Member Join Date: Nov 2009 Real Name: François Location: France Posts: 169	Watchmaker advise please. Hi Rolex does not want to repare my watch, I'll do it myself. Got a new original twinlock tube from Cousin's and a tool to unscrew the used tube but ........ there are no grooves of any kind inside the old tube. The old tube is screwed though. What is the best way to take the tube out ? Next, will the new style tube fit the case ? Watch : Tudor 7934 from IV 1960 . Manual wind. Thanks

15 January 2010, 02:36 AM	#2
Rikki TechXpert Join Date: Jun 2009 Real Name: Rik Dietel Location: Seminole Fla Watch: 5512 s/s Sub Posts: 1,818	You need to use a cutting broach get the right size to fit the tube without going all the way to the other end of the case. Put broach in lightly tap with a hammer hold the broach with a strong pair of pliers in one hand and turn the case with the other. If the tube doesn't come out but start to shred tap the broach a bit more till it grabs the tube. Sometimes the tube will just not come out without broaching all the way down to the threads in which case you will have to tap the case threads. Make sure you use the correct tap if you don't case will be ruined. Good Luck Rikki

16 January 2010, 02:15 AM	#3
f-du-27 "TRF" Member Join Date: Nov 2009 Real Name: François Location: France Posts: 169	Thanks Rikki Well, I did it and to my surprise very easily. I thought it would have resisted more because of the three metals and fifty years of oxydation. The new tube looks very white, is it still made of Maillechort or is it now made of stainless steel ? I'll order a tool to screw the tube properly. It's quite funny I have lots of scewdrivers for glasses or to open cell-phones and don't have a single one to work on a watch. Every thing is so tinny in there ! To return to the subject shoud I use a Loctite glue or a sealent ? I guess my watch had none of those. The tubes have two screws, one to the case and one to the crown. Have you noticed some changes in sizes along the years or has Rolex kept the same standard from the first Oyster ? (Of course, I am only considering the 6 mm crown and tube).

16 January 2010, 02:13 PM	#4
Rikki TechXpert Join Date: Jun 2009 Real Name: Rik Dietel Location: Seminole Fla Watch: 5512 s/s Sub Posts: 1,818	The older tubes were not knurled on the inside to facilitate insertion the knurling was on the inside tube and then had to be broached out to fit the crown the new tubes are good to go once inserted. part number 24-6020 part number for tube. Rik

20 January 2010, 02:07 AM	#6
Rikki TechXpert Join Date: Jun 2009 Real Name: Rik Dietel Location: Seminole Fla Watch: 5512 s/s Sub Posts: 1,818	By looking at the picture it doesn't look as though the tube is in all the way make sure it snugs up against the case it has a beveled edge that helps in the waterproofing Rik

24 January 2010, 02:50 AM	#7
f-du-27 "TRF" Member Join Date: Nov 2009 Real Name: François Location: France Posts: 169	Hi Rik You are right, I still have to order the proper tool to firmly screw the tube. I also want to order the crown, should I take 24-6000 or 24-6030 ?. Regards

26 January 2010, 01:46 PM	#8
Rikki TechXpert Join Date: Jun 2009 Real Name: Rik Dietel Location: Seminole Fla Watch: 5512 s/s Sub Posts: 1,818	the 24-6020 should do the trick glad it worked out. Rikki

29 January 2010, 12:32 PM	#9
Rikki TechXpert Join Date: Jun 2009 Real Name: Rik Dietel Location: Seminole Fla Watch: 5512 s/s Sub Posts: 1,818	Sorry the crown would be a 24-600-0 s/s crown

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