Setting Lever Thread

[LMS]

I've located a fault on a vintage manual Oris movement. Although the setting lever screw catches and holds the setting lever, it does not tighten (just turns). I assume the lever thread is stripped.

What's the protocol here? My thought was to use my staking set (that will be a first) to close the hole, then open up the thread with a tap.

The issue there is my smallest 14 tap seems too big. Will this work if I just use the start of the tap? Or is there some something entirely different I should be doing? All help from the experienced folk on here would be gratefully received.

 

[AndyGSi]

If the fault is with the lever and not the screw then first thoughts depending on the movement would be to just get a new lever.

Edit

Just enlarged the photo and the screw thread looks shot too.

Edited October 5, 2024 by AndyGSi

[LMS]

Thanks Andy. And there's nothing I can do to fix? I'll investigate my donor movement graveyard and see about getting a replacement screw and lever.

[AndyGSi]

13 minutes ago, LMS said:

And there's nothing I can do to fix?

It probably could be fixed but even with the equipment I don't think it would be worth it.

What's the movement?

[LMS]

It's an Oris cal 291.

[AndyGSi]

1 hour ago, LMS said:

It's an Oris cal 291.

As expected it's not worth messing around with.

[LMS]

Ah. But for the emotional investment. This is the first movement I may actually fix as oppose to destroy. Which is where my watchmaking journey has been to date. 

[LMS]

I've just noticed the image, I thought you meant don't bother with the movement. Many thanks, shopping basket duly updated.

[Neverenoughwatches]

16 hours ago, LMS said:

I've located a fault on a vintage manual Oris movement. Although the setting lever screw catches and holds the setting lever, it does not tighten (just turns). I assume the lever thread is stripped.

What's the protocol here? My thought was to use my staking set (that will be a first) to close the hole, then open up the thread with a tap.

The issue there is my smallest 14 tap seems too big. Will this work if I just use the start of the tap? Or is there some something entirely different I should be doing? All help from the experienced folk on here would be gratefully received.

 

The lever you could make that will give you one half of the repair needed. Make the hole smaller and re-thread the screw

15 hours ago, LMS said:

It's an Oris cal 291.

Super little pin pallet movement, i was wearing one yesterday, there is a fairly large calibre family for this. You could pick up a donor for pretty cheap , not forced to not have the same issue but honestly just have an attempt at making the lever.

Or buy the pieces whatever, in Yorkshire we make what we dont want to pay for .  If you want to work on pin pallet movements then choose Oris, in my opinion they made the best for the money....because they had no choice but to. Keep this thread open if you dont mind as I'd like to see your progress with it and also ask something of you that I'd like varifying. 

Edited October 6, 2024 by Neverenoughwatches

[LMS]

Not hailing from east of the Pennines, (and without the required skills in any event) I've gone large and splashed out the £3.95 for a lever and screw as suggested by AndyGSi.

I only found out yesterday, whilst feeding my nightly dose of insomnia with a Chronoglide video [correction it was a Vintage Watch Services video], that Oris were restricted to pin pallet movements by some obscure Swiss regulation. This restriction was removed just in time for them to stumble into the quartz crisis; how's your luck! The result of this was Oris made an art out of making these movements.

I personally think Oris are underrated as a brand, just my opinion.

Video link below-

 

 

 

Edited October 7, 2024 by LMS