[Pompompurin's] Let's build a superfranken Tudor 9411 / 94110 Snowflake Submariner

[est4129]

Looks like a great start! Where did you score the 9411 service dial?

Snowflake picture for additional inspiration:

Nearly all of the parts have arrived, except I am still waiting for the movement. Additional parts include a new JKF Tudor 7836 bracelet, bivintage 9411 case set, clarks 25-125 plexi, and clarks bezel assembly.

 

[pompompurin]

Where did you score the 9411 service dial?

Locally in Hong Kong

 

[pompompurin]

The Tudor 2784 movement arrived:







I also did some case work. Firstly, the stock crown/ tube are removed.



Then the case is re-tapped so that it fits gen-spec 7030 triplock tube.



The gen crown and gen-spec 7030 triplock tube are temporarily installed to see if I need to countersink the case. It appears that I don't need to countersink the case.

The next step is to reshape the insides of the crownguards.



I use a dummy athaya crown/tube to check if the opening is wide enough, as I reshape.

I am satisfied with the results.







However, there are still burrs left from reshaping. I use a diamond file to remove the burrs.





Then I use a dremel with green polishing compound to polish the insides of the crownguards.



The insides of the crownguard is now reshaped and polished.

 

[Singapore9]

Great work as always! The movement looks brand new and has a great date wheel - awesome!!!

 

[pompompurin]

I noticed that the underside of the rehaut has burrs/ sharpness. Since I am using a rare gen dial, I don't want these burrs to scratch my gen dial. Therefore, I used a dremel to deburr and polish the rehaut.

Before deburring and polishing:



After deburring and polishing:



Then I cleaned the case using soapy water, a toothbrush, and pegwood.

Once the case was dried, I installed the movement and cut custom length tabs. I am also using a Helenarou movement ring instead of the stock movement ring because the tab cutouts of the Helenarou movement ring are deeper and better for installing tabs.



I then proceeded to try installing a Clarks 25 125 plexi. However, the Clarks 25 125 is too wide which subsequently didn't allow the gen bezel insert to turn freely. I resorted to using a Clarks 25 144 plexi instead.



Quick mock-up:





The next step is to modify the Clarks bezel assembly, which includes mirror-polishing the bezel ring and enlarging the diameter of the crystal retainer.

 

[WatchN3RD]

Amazing build with a wonderful write up and pictures to match!

And where did score the JKF folded bracelet? I had one years ago, and I miss it. Now I want another one.

 

[pompompurin]

Amazing build with a wonderful write up and pictures to match!

And where did score the JKF folded bracelet? I had one years ago, and I miss it. Now I want another one.

Thanks!
I bought a jkf tudor just to use its bracelet

 

[Fraist]

Very nice job you have done. Thanks for sharing the entire building process !

I am building the same watch and i have some concerns regarding bi-vintage rehaut modification.
As i saw you did not shape at all the internal rehaut. In the gen supposed to be like that or there should be a chamfer inside?
Also outside where the crystal fits probably should be a small chamfer on top and a gap on the bottom to allows the crystal to clamp better.
Check this Tudor case cross section below.




I never had the chance to have a gen case in hand to measure and inspect the rehaut inside / outside but i believe there should be a chamfer in both sides.

 

[pompompurin]

As i saw you did not shape at all the internal rehaut. In the gen supposed to be like that or there should be a chamfer inside?

Also outside where the crystal fits probably should be a small chamfer on top and a gap on the bottom to allows the crystal to clamp better.

Thank you for sharing! I have no idea but these aspects don't concern me. These aspects are so minor and can't really be seen lol. I am more worried about things like the hands and date font.

Here are pictures of a gen 9411. I think all I can see is just a straight rehaut wall?

 

[Fraist]

I found a cross cutten 9411 case in the Rolex forums.
Here you can see better the chamfer.
I understand that these are minor details. But details makes the difference !

 

[pompompurin]

I found a cross cutten 9411 case in the Rolex forums.
Here you can see better the chamfer.
I understand that these are minor details. But details makes the difference !

Thanks for sharing. I find it very minor that I cannot see it in many online pictures. I can therefore live without it.

 

[Singapore9]

Correct that the rehaut should have an angle/chamfer but I also wouldn't be too bothered. I also have the HR movement ring.

You have done a great job there! Bit surprised the Clark 25-125 didn't work with the GEN insert as I have used one, no problem.

My pics on the 1st page of the thread, 19th April, show a Clark 25-125 with the GEN bezel and insert, albeit you can see I later swapped to a T19.

Perhaps there were some size differences between batches? Generally need XS 303 type as opposed to XS 305 but Clark are all one size, I think.

Will go and measure mine later and see what's what. I do find Clark crystals work best with the Clark retaining ring, so I'd stick with your setup.

GEN retaining ring and I prefer a Sternkreuz or GEN plexi. A Verlux is also great (probably where Rolex sourced theirs, according to TRF), but hard to find... unless you're looking in my parts drawer

 

[pompompurin]

I found a cross cutten 9411 case in the Rolex forums.
Here you can see better the chamfer.
I understand that these are minor details. But details makes the difference !

Upon very close inspection, the bivintage 9411 case actually has the ledge. You can see it at around 6 o'clock position.

 

[pompompurin]

Bit surprised the Clark 25-125 didn't work with the GEN insert as I have used one, no problem.

Perhaps there were some size differences between batches?

Quite possible. Even rolex can have slight changes to their manufacturing tolerance as well.

I do find Clark crystals work best with the Clark retaining ring, so I'd stick with your setup.

I find my crystal retainer being too tight. I will have to reduce its internal diameter later. More work here unfortunately.

Sternkreuz or GEN plexi

Sterkreuz has one of the best cyclops for aftermarket rolex crystals. They have nice magnification with a slight halo effect. Plus they are excellent value

 

[Singapore9]

Interesting the retaining ring is tight as well as the insert... certainly doesn't sound right - worth letting Gary know, I reckon. Could have just got a random bad one!?

 

[toulminator]

I have a 94010 but the case back is not engraved with the rolex markings where could I get a good case back gen or not gen I don't mind?

 

[Singapore9]

Could contact @Bivintagestore and ask if he could supply one

 

[est4129]

Interesting the retaining ring is tight as well as the insert... certainly doesn't sound right - worth letting Gary know, I reckon. Could have just got a random bad one!?

In my experience all the clarks are oversized (125, superdome, and T39). I ended up going gen on most of mine.

 

[Singapore9]

Your watch's brother says hello!



Edited to add a little roulette:

 

[Fraist]

The Tudor 2784 movement arrived:







I also did some case work. Firstly, the stock crown/ tube are removed.



Then the case is re-tapped so that it fits gen-spec 7030 triplock tube.



The gen crown and gen-spec 7030 triplock tube are temporarily installed to see if I need to countersink the case. It appears that I don't need to countersink the case.

The next step is to reshape the insides of the crownguards.



I use a dummy athaya crown/tube to check if the opening is wide enough, as I reshape.

I am satisfied with the results.







However, there are still burrs left from reshaping. I use a diamond file to remove the burrs.





Then I use a dremel with green polishing compound to polish the insides of the crownguards.



The insides of the crownguard is now reshaped and polished.

Can you make a simple drawing and show where do you cut the crown guards? I am not able to understand where you are removing material.