Longines Cal 284 Set lever screw sheared

[mikepilk]

Bought my first Longines this week, a lovely Cal 284.

Stripping it for a clean, I discovered why I had difficulty getting the stem out - the the set lever screw has sheared off.

I know the set lever is part #443, but I'm not sure what the part number for the screw is ?

I'll probably need both parts as I can't see how to get the broken screw out without damaging the lever thread. I tried a screwdriver, but the top of the broken screw is flat.

Then the problem of finding the parts - Cousins don't have them, I can get the set lever from the USA, but can't find the screw anywhere.

Can anyone help please ?

 

[wls1971]

The set lever screw number will be a 443/5 or 5/443. And 443/A for set lever complete with screw.

Edited December 3, 2016 by wls1971

[rogart63]

if you now the size of the thread and how the screw looks? Couldn't you get a replacement screw from Cousinsuk generic sortiment. 

[rogart63]

This is a setting lever for a longines 280/284  http://www.ebay.com/itm/TIRETTO-CALIBRO-LONGINES-280-284-/152149733130?hash=item236cd4af0a:g:gygAAOSwoudW9Wkq

But maybe cheaper from USA .

[mikepilk]

11 minutes ago, rogart63 said:

if you now the size of the thread and how the screw looks? Couldn't you get a replacement screw from Cousinsuk generic sortiment. 

Unfortunately there's a shoulder on the screw which sits in the plate. 

 

[rogart63]

2 hours ago, mikepilk said:

Unfortunately there's a shoulder on the screw which sits in the plate. 

 

I have a few of those in different sizes. But we need to now a few sizes . Like the thread and the diameter of the shoulder? The other lengths could be cut right lengths? 

[Marc]

Always worth giving John at obsoletewatchandclockparts.com an email. He doesn't list what you are after, but he doesn't list everything he's got so definitely worth asking.

[StuartBaker104]

Or May Moorhead at Northern Watch and Clock Supplies

[rogart63]

Or Mr Kudarson at oldswisswatches  

[mikepilk]

Thanks for the info, I've emailed all of the above.

I tried again to remove the broken screw but without success. I've ordered a new lever from the USA.

If I can't get a genuine screw, Cousins do a set of 100 various set lever screws - one should be close enough to use.

[rogart63]

3 minutes ago, mikepilk said:

Thanks for the info, I've emailed all of the above.

I tried again to remove the broken screw but without success. I've ordered a new lever from the USA.

If I can't get a genuine screw, Cousins do a set of 100 various set lever screws - one should be close enough to use.

Maybe not the best but a normal screw could work? With the right size head? If you can't find the right one with a shoulder?