Removing a stubborn slotted case-back. Any ideas ?

Vintage Rolex Discussion

Removing a stubborn slotted case-back. Any ideas ?

GMTKiwi
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GMTKiwi
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Joined: October 18th, 2009, 12:39 pm

June 29th, 2012, 12:01 am #1


I'm trying to liberate a perfectly functioning Valjoux 72 from it's horrible old (no-value) case but the slotted caseback simply won't budge.

None of my case opening tools have worked. Penetrating oil hasn't helped - nor has a hairdryer or a night in the deep-freeze - all suggested by an engineer friend.

Two (real) watchmakers have also tried and failed, even when resorting to punch and hammer (with my permission).


Any other tricks of the trade would be really welcome - thanks in advance.
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jatucka
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jatucka
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Joined: June 28th, 2007, 12:41 am

June 29th, 2012, 12:12 am #2

if the case has no value try to (very carefully) cut the case ... (nt)
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TurboWatch
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TurboWatch
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Joined: October 3rd, 2009, 5:05 pm

June 29th, 2012, 12:24 am #3

I'm trying to liberate a perfectly functioning Valjoux 72 from it's horrible old (no-value) case but the slotted caseback simply won't budge.

None of my case opening tools have worked. Penetrating oil hasn't helped - nor has a hairdryer or a night in the deep-freeze - all suggested by an engineer friend.

Two (real) watchmakers have also tried and failed, even when resorting to punch and hammer (with my permission).


Any other tricks of the trade would be really welcome - thanks in advance.
carefully tab 2 indentations that is deep enough, one on each opposite side of the case back. Then use 2 metal screws on each one of them. Use those as leverage to turn the case back loose. Easy fix if you want to reuse the case back. Good luck
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watchyouwant
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watchyouwant
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Joined: April 16th, 2006, 11:27 pm

June 29th, 2012, 2:14 am #4

makes it easier in case you have a desintegrated seal as well.....good luck ! achim
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GMTKiwi
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GMTKiwi
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Joined: October 18th, 2009, 12:39 pm

June 29th, 2012, 10:32 am #5

I'm trying to liberate a perfectly functioning Valjoux 72 from it's horrible old (no-value) case but the slotted caseback simply won't budge.

None of my case opening tools have worked. Penetrating oil hasn't helped - nor has a hairdryer or a night in the deep-freeze - all suggested by an engineer friend.

Two (real) watchmakers have also tried and failed, even when resorting to punch and hammer (with my permission).


Any other tricks of the trade would be really welcome - thanks in advance.
Thanks for the tips guys. Appreciated (nt)
Last edited by GMTKiwi on June 29th, 2012, 10:57 am, edited 1 time in total.
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janiceandfred
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Joined: August 2nd, 2007, 1:28 pm

June 30th, 2012, 7:05 am #6

I'm trying to liberate a perfectly functioning Valjoux 72 from it's horrible old (no-value) case but the slotted caseback simply won't budge.

None of my case opening tools have worked. Penetrating oil hasn't helped - nor has a hairdryer or a night in the deep-freeze - all suggested by an engineer friend.

Two (real) watchmakers have also tried and failed, even when resorting to punch and hammer (with my permission).


Any other tricks of the trade would be really welcome - thanks in advance.
this is the method my well seasoned Godfather the watch maker uses and it never fails, and never damages a caseback. he utilizes this on most stubborn and soft gold cased rolexes and was trained by rolex manila decades ago to use this method so as to minimize any chance of damage. it also works equally well on any steel cased watch.

use 2-part epoxy and affix a suitable tool bit to the caseback. use a tool on the tool bit to unscrew the caseback while the watch case is held in a suitable holder with wood or plastic insulators. after the caseback is removed, simply soak the caseback and epoxied tool bit in solvent to dissolve the epoxy.

hope this tip can help some here who are afraid of damaging a valuable case and caseback.

janice
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daydatemonthchrono
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Joined: June 20th, 2012, 10:11 pm

June 30th, 2012, 9:26 pm #7

I'm trying to liberate a perfectly functioning Valjoux 72 from it's horrible old (no-value) case but the slotted caseback simply won't budge.

None of my case opening tools have worked. Penetrating oil hasn't helped - nor has a hairdryer or a night in the deep-freeze - all suggested by an engineer friend.

Two (real) watchmakers have also tried and failed, even when resorting to punch and hammer (with my permission).


Any other tricks of the trade would be really welcome - thanks in advance.
Hi Paul, try putting a pocket knife in the slot ,and have someone hit on the knife with a hammer while you try to open the case at the same time the knife is hit with the hammer.

Thanks

Ara
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GMTKiwi
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GMTKiwi
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Joined: October 18th, 2009, 12:39 pm

July 3rd, 2012, 3:23 am #8

I'm trying to liberate a perfectly functioning Valjoux 72 from it's horrible old (no-value) case but the slotted caseback simply won't budge.

None of my case opening tools have worked. Penetrating oil hasn't helped - nor has a hairdryer or a night in the deep-freeze - all suggested by an engineer friend.

Two (real) watchmakers have also tried and failed, even when resorting to punch and hammer (with my permission).


Any other tricks of the trade would be really welcome - thanks in advance.
Thanks Janice and Ara - both idea are worth a go !
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