Tube to fit OEM crown & Jimmy case

[archibald]

Assuming the crown or stem can be modified to make an OEM crown work w/ the handwind movement, it looks like the tube will be the next hurdle if anyone would like to use the crown w/ a Jimmy case. The hole in the case is 3.25mm and the crown needs a tube with an inside diameter of 2.3mm-2.5mm. Of course, the length of the tube can be customized. My own search of the usual places has come up w/ no ready made solutions.

Since I have this exact combo of crown and case in hand at the moment I thought I would submit the dilemma to our RWG brain trust for ponderance.

[launchjack]

You may want to get a hole gage/mic to confirm your measurements. The last time I made a tube for a JZFu, I had a little different number. Good Luck"

[archibald]

I'm happy to report that this can be done. Custom-made 316 SS tube to fit Jimmy case, custom-made .9 OEM crown/1.2 stem combo. Works w/ Jimmy CG as well.

[stilty]

Assuming the crown or stem can be modified to make an OEM crown work w/ the handwind movement, it looks like the tube will be the next hurdle if anyone would like to use the crown w/ a Jimmy case. The hole in the case is 3.25mm and the crown needs a tube with an inside diameter of 2.3mm-2.5mm. Of course, the length of the tube can be customized. My own search of the usual places has come up w/ no ready made solutions.

Since I have this exact combo of crown and case in hand at the moment I thought I would submit the dilemma to our RWG brain trust for ponderance.

The crown tube I have from Jimmy fits the OEM crown perfectly. I haven't tried to fit it to my 029 case yet, but I am sure that is easier than trying to get a crown to fit a tube.

[Watchmeister]

Arch-

Looks incredible. Fabulous result. Big congratulations.

[archibald]

The crown tube I have from Jimmy fits the OEM crown perfectly. I haven't tried to fit it to my 029 case yet, but I am sure that is easier than trying to get a crown to fit a tube.

My watchsmith's opinion on the Jimmy tube is that it's pretty close, but probably won't form a water-tight seal or activate the spring mechanism properly w/ the .9mm OEM crown.

@kruzer: I think I hear a lathe turning as I type this...

[Watchmeister]

Yahoo! Looks much better than I could have hoped. They will be true works of art. You have to take a group shot. It will be one for the ages.

[fishgodeep]

My watchsmith's opinion on the Jimmy tube is that it's pretty close, but probably won't form a water-tight seal or activate the spring mechanism properly w/ the .9mm OEM crown.

@kruzer: I think I hear a lathe turning as I type this...

Excellent ...sounds a bit lame ...but this is like the decoding of Egyptian heiroglyphs when they found the Rosetta stone....

A great puzzle solved I think...?:-)

Awesome contribution to the craft IMHO

Thanks

FGD