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Lord Elgin Shockmaster Durapower case opening?

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linux

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So far in my watchmaker journey this is about the least desirable operation and I have the cuts to prove it.  I will only add that on several ebay beater training watches the only thing that worked is the "snappy" opener tool on Esslinger for about $12.

Good luck and may the force be with you 🙂

 

 

snappy.jpg

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HectorLooi Distinguished Member

HectorLooi

Posted
Posted
3 hours ago, linux said:

So far in my watchmaker journey this is about the least desirable operation and I have the cuts to prove it.  I will only add that on several ebay beater training watches the only thing that worked is the "snappy" opener tool on Esslinger for about $12.

Good luck and may the force be with you 🙂

 

 

snappy.jpg

I never had a good experience with this tool. It's a modified automatic centre punch. The sharp point has been ground flat to a chisel point.

This tool tends to leave marks on the lip of the watch case. After that, it's impossible to get a water tight seal.

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LittleWatchShop Distinguished Member

LittleWatchShop

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1 hour ago, RichardHarris123 said:

Apologies for my rubbish drawing and handwriting but I  had this idea a while ago.  Shape some metal to fit just inside the case back diameter, glue to the back, glue and nut to that and use mechanical advantage. 

20241205_123315.jpg

Damn, that is a good idea!!  Last night I was pondering gluing a nut and use angular force to pop it off, but this is far better!!  The shell piece easily 3D printed.

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Neverenoughwatches Distinguished Member

Neverenoughwatches

Posted
Posted (edited)
2 hours ago, RichardHarris123 said:

Apologies for my rubbish drawing and handwriting but I  had this idea a while ago.  Shape some metal to fit just inside the case back diameter, glue to the back, glue and nut to that and use mechanical advantage. 

20241205_123315.jpg

This is going for a sheer force pull over the whole back as opposed to popping one section of it, so requires...more effort, just that direct point loading on the lugs that bothers me, the outer case rim of the tool might want to be tight up to the lug joins and evenly distributed. Great idea though👍

Can't say I've ever been stuck for removing a back, screwed on or pressed on. 

The only time i have is when it wasn't actually removable, the watch put up a valiant fight,yet died a true hero's death 😄

Edited by Neverenoughwatches
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Neverenoughwatches Distinguished Member

Neverenoughwatches

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23 minutes ago, RichardHarris123 said:

Push against the legs isn't ideal but I think if the force is across all four ut should be ok.

Let me know how you get on.

I was trying to come up with a way to secure the case down so as to push against something else. I think you'd have to make something individually for each watchcase that fits close around the case backside as well as the lugs...a sleeve that just doesn't interfere with the caseback. Something like a ratchet socket but without the internal facets .

You could grind out the flats with a drum sander attachment.

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Neverenoughwatches Distinguished Member

Neverenoughwatches

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8 minutes ago, RichardHarris123 said:

If it works maybe Mark2 could use a jubilee clip to push against the lugs/case, fully adjustable. 

That reminds me of the adjustable mainspring winders that use 3 prongs to form an adjustable ring. You'd need to find a way of securing the top plate to the jubilee clip.

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AndyGSi Distinguished Member

AndyGSi

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37 minutes ago, Neverenoughwatches said:

I was trying to come up with a way to secure the case down so as to push against something else. I think you'd have to make something individually for each watchcase that fits close around the case backside as well as the lugs...a sleeve that just doesn't interfere with the caseback. Something like a ratchet socket but without the internal facets .

You could grind out the flats with a drum sander attachment.

I was thinking a hole saw with the teeth removed 

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RichardHarris123 Distinguished Member

RichardHarris123

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19 minutes ago, Neverenoughwatches said:

Better still 👍

This is why our group is so great...someone has a good idea and then we jump on board to build on it 🙂

Bugger off, Bergeon are going to pay me £1000, 000 for my idea, hehe. Joking apart, yes brilliant, if between us we can make a tool for stubborn back, then we all win.  

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Neverenoughwatches Distinguished Member

Neverenoughwatches

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6 minutes ago, RichardHarris123 said:

Bugger off, Bergeon are going to pay me £1000, 000 for my idea, hehe. Joking apart, yes brilliant, if between us we can make a tool for stubborn back, then we all win.  

Count me in as your marketing rep....with a gob like mine I can sell anything....including horseshit to a stables owner 🤣

 

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Neverenoughwatches Distinguished Member

Neverenoughwatches

Posted
Posted (edited)
11 hours ago, AndyGSi said:

I was bored.

 

1733431034725-00ebcc77-3330-4b3c-9296-ccb4a7b28360_1.jpg

Too much cad time on your hands Andy 😅

1 hour ago, RichardHarris123 said:

I'm going to start calling you Thomas, as in Mr Eddison. Invented nothing, patented everything. 

Funny I was reading a few months ago about the ideas he stole from Tesla 😄

11 hours ago, AndyGSi said:

I was bored.

 

1733431034725-00ebcc77-3330-4b3c-9296-ccb4a7b28360_1.jpg

 

1 hour ago, RichardHarris123 said:

I'm going to start calling you Thomas, as in Mr Eddison. Invented nothing, 

Its a pretty cool finished tool tbh, i think we should make one.

Edited by Neverenoughwatches
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Neverenoughwatches Distinguished Member

Neverenoughwatches

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8 hours ago, AndyGSi said:

 

IMG_20241206_095949.jpg

Just needs testing now. Do you need a nut above that plate ? 

Richard....I hope you are ready with a micro torch to re-weld all the lugs back on that this thing snaps off 🤣

5 minutes ago, Neverenoughwatches said:

Just needs testing now. Do you need a nut above that plate ? 

Richard....I hope you are ready with a micro torch to re-weld all the lugs back on that this thing snaps off 🤣

@RichardHarris123 I know you're thinking 🤔....Rich...C  U  Next Tuesday 🤣

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