Speedmaster 105.012 Pushers - repairable?

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BatDad

·Jun 30, 2019

Good point. I hadn’t considered that.

More thought required before action...

Thanks for that link. I’ll take a look!

Cheers
Craig

 

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Archer

·Jun 30, 2019·Omega Qualified Watchmaker

wsfarrell

Given the screw slot in the bolt on the eBay pusher, I would think it would be designed to be taken apart. The loctite would be there so it wouldn't fall apart, but the slot is there so it can be unscrewed if necessary. No?

For disassembly, yes. But this means the entire thing is being replaced, and the new one is pressed in as a complete unit.

 

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wsfarrell

·Jun 30, 2019

ChrisN

These don't appear to be the wide neck pushers and look like service replacement parts. These are also not designed to be taken apart - at least that's what I would expect with interference fit pushers. If the pusher stem/bolt is screwed in to the cap of an interference fit pusher, I'd expect it to be loctited at the factory as you push these in already assembled, with the other side of the tool @BatDad is showing above. I can't see it well and there is no part number but I'm 99% sure it is not a wide neck.

eBay seller responded and said that the pusher he's listing is in fact 0089. He also has 0088's in stock FWIW.
https://www.ebay.com/itm/382822491341

 

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BatDad

·Jul 27, 2019

Thanks to an OF member I’ve manage to secure genuine Omega vintage replacements for the springs and pushers stems.

Had a quick revisit on this today and I think the challenge is going to be how to seat the pusher stem correctly against the rubber gasket whilst it’s depressed AND trying to re-engage the oRing inside the pusher cap. My only attempt today resulted in the spring and stem flying across the table!

Pics as an update - and side by side comparison with the original shoulder and service part.

More work to be done...

 

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BatDad

·Apr 24, 2020

Right, after a long hiatus I got back to this... with some success...

Tried my utmost to straighten the pressure fit ring. Cracked out the horotec pusher tool and figure out a way to get the pusher to connect

 

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BatDad

·Apr 24, 2020

But it’s not quite a happy ending yet. The retaining ring didn’t grip on all sides - so in I went with a small screwdriver to ‘gently’ secure the last quarter and.....

Back to square one.... I do think this is doable though...

 

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BatDad

·Jul 10, 2020

Finally got back around to this.

Success is claimed - at least for one of the pushers!!!

like most things I just needed the right tool - which turned out to be a 4mm hole punch to fit over the pusher and sit on the pressure fit ring. After spending a fair amount of timing lining things up - a slight tap and we’re in. Although that was my second attempt.... the first left me with a mangled pressure fit ring due to misalignment. Anyone have a spare to sell?? 😀

 

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airansun

·Jul 10, 2020

Mine are in the mail to you! 😉

Wow is all I can say.

 

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eugeneandresson

·Jul 11, 2020

Great thread @BatDad 👍

 

K

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killer67

·Jul 11, 2020

Are you self-taught?

 

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BatDad

·Jul 11, 2020

K killer67

Are you self-taught?

Yah - I like to disassemble things to figure out how they work. Reassembly takes a little longer!

have taken one AWCI build a watch course and had a ton of advice here.

 

K

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killer67

·Jul 11, 2020

BatDad

Yah - I like to disassemble things to figure out how they work. Reassembly takes a little longer!

have taken one AWCI build a watch course and had a ton of advice here.

There’s hope for me then 😁 Impressive

 

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Gefa

·Mar 9, 2022

Dear All!
It seems, I have a similare problem with one of my "fat neck" pushers. The comments in this thread are very interesting, but it is still unclear for me, what should hold the pusher cap in place? The diameter of the "ring" of my pusher is a bit smaller as the opening of the cap, it's also fixed at the bolt and can not be loosend. Would be glad if someone could help me...
Thanks Gerhard

 

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BatDad

·Mar 11, 2022

I’m no expert, but for the two I disassembled there was a very small Metal O ring , with a smaller chamfer. It connects to the main pusher stem and is pressure fitted to the cap.

If the cap ‘popped’ off, I’m wondering - do you have that part? ( you can see a pic of the one I mangled a few pictures above.

 

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Gefa

·Mar 11, 2022

Hi and thank you!

I thought this one is this metal ring?

 

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Gefa

·Mar 11, 2022

OK... this part is missing in my pusher 🙁

 

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perlunk

·Mar 7, 2023

I'm trying to understand where the critical component is that ensures the water and dust resistance. Initially I thought the rubber is the gasket component, but looking at the photos and trying to understand the mechanical moving parts, it seems like the rubber is just kind a like a buffer.

So, are the tight built of all the metal parts (tube, pin) the main component for water and dust resistance?

I'm just trying to decide if it's worth trying to replace the rubber/gasket of my Fat Neck pushers in regards to make them water and dust resistance.