Tag Heuer Crown and Tube replacement

[Kkwong]

Hello all,

Got this Tag Heuer Sel WG1210-KO from my friend, but the crown and tube were completely rusted.  Managed to pull out the crown and tube but they both need a replacement.  The tube was completely rusted, hence can't really take any measurement, may I know what is the right size of both crown and tube?  I found from Cousin UK, it seems the crown is 5.25mm diameter and 4mm depth, but not sure which tube size should I order.   Please help.

Thanks

[HectorLooi]

Your watch stem is completely rusted away. You'll need a new stem. Is that an ETA 955 movement?

If the pendant tube is also rusted, you'll need to remove it from the case and measure the tube diameter and screw pitch. It can be difficult.

[Kkwong]

I did remove both Stem and tube, but as you said, the tube and crown thread was completely rusted hence couldn't measure its size.  Yes, the movement is ETA955.  I got a new stem already, but need to order a right size tube and crown.  Just don't know the size of the tube.

[gbyleveldt]

I'm checking on an SEL I have stripped here. The crown is 5.25 mm with what looks like either a 2.1 or 2.2 threaded inner tube, Cousins part number looks like C8612

For the tube, It's 2.6 OD and 7mm long. I can't be sure if it's ID is 2.1 or 2.2mm as that's the threaded part. I'm leaning towards 2.1mm so Cousins part number should be C8623. I would suggest you buy a 2.1 and 2.2 ID tube to be safe.

Edited December 5, 2022 by gbyleveldt

[Kkwong]

Thank you so much gbyleveldt for your advice and information.  I checked from Cousins, the ID2.2mm one says for Crown 5.5mm which I think may not be right for crown 5.25mm.  I think I will go for C8623 although its 6.9mm long which is for screw down crown as per Cousins.   Thanks you.