Opening Sandoz

Discussion in 'Watch Repair' started by mentat247, Apr 30, 2009.

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  1. mentat247

    mentat247 Registered User

    Apr 19, 2009
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    I am trying to open a Sandoz Singapore Day Date 40mm. I measured the back at 29.5mm and tried to use a HEDAPAI No 5537 tool to open without any luck. I thought this watch opened with a rolex tool? Has anyone worked on these and can advise me?

    184.jpg
     
  2. doug sinclair

    doug sinclair Registered User

    Aug 27, 2000
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    What are the chances that this is a press fit style of back? Much like Swiss Army. LOOKS like a screw back, but is a snap on.

    Doug
     
  3. Rick Alhadeff

    Rick Alhadeff Registered User

    Feb 11, 2004
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    I second Dougs opinion - willing to bet it snaps on. Try it carefully. What happend when you tried with the 5537 tool? Did the tool slip or not move at all? Aloha, Rick:cool:
     
  4. mentat247

    mentat247 Registered User

    Apr 19, 2009
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    The tool didn't fit...it was too small. If it is a snap on, how would I remove it?
     
  5. le arsi

    le arsi Registered User

    Jul 7, 2008
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    Try to look at the toothed back case it is sharp and deeper and perfectly angled, than the Swiss Army so I recommend a three prong universal case opener to fit it.
     
  6. mentat247

    mentat247 Registered User

    Apr 19, 2009
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    so you think it screws off?
     
  7. Jon Hansen

    Jon Hansen Registered User

    Dec 19, 2005
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    Maybe it does screw off, but it might be a snap on. Jon Hansen
     
  8. John Weigel

    John Weigel Registered User

    Apr 17, 2005
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    Call Sandoz?
     
  9. mentat247

    mentat247 Registered User

    Apr 19, 2009
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    Its a screw back
     
  10. mentat247

    mentat247 Registered User

    Apr 19, 2009
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    I got a universal case opener but the teeth are so small it slips! I can't get the thing open!
     
  11. le arsi

    le arsi Registered User

    Jul 7, 2008
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    Try to improvise. Use a large nut that will almost cover the entire back and glue it with cyanoacrylic (superglue) then let it dry (really dry). Then turn the nut slowly with your vise to open it. Good luck!
     
  12. doug sinclair

    doug sinclair Registered User

    Aug 27, 2000
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    le arsi,

    That trick might work with a solid steel back, but what is your opinion on the advisability of trying it with a glass backed watch, where the glass is held in with a neoprene ring? If the owner was real serious about getting the case back off, he'd have sought help, other than on this MB. In fact, somone with some tools and experience in such matters. IMHO.

    Doug S.
     
  13. mentat247

    mentat247 Registered User

    Apr 19, 2009
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    The largest rolex bit I have is 29.5...perhaps I can find a larger one.
     
  14. le arsi

    le arsi Registered User

    Jul 7, 2008
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    Yes Doug I forgot to tell not to expose the glass ring into superglue , sorry. What I'm referring to is the metal part after the glass. A large nut might do the trick. But I'm just thinking, I've opened plenty of this model and I just used 2 and 3 prong opener with the help of a case vise and a very confident grip.
     
  15. mentat247

    mentat247 Registered User

    Apr 19, 2009
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    Please click one of the Quick Reply icons in the posts above to activate Quick Reply.
     
  16. mentat247

    mentat247 Registered User

    Apr 19, 2009
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    Maybe my universal opener is cheap cause the bits slip on the teeth of the caseback. As for the "rolex tool" I have the 5537 kit but that doesn't come with a bit large enough.do they even make a 30+ nut?

    With this glue idea, once you get the case open how do you get the glue off?

    Noob question: which way do I turn the caseback to unscrew it? Counterclockwise?
     
  17. le arsi

    le arsi Registered User

    Jul 7, 2008
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    You can remove the glue with an acetone. And to unscrew a back case turn it countercw of course. If you are not sure with your self, try doing it in another watch case with tight back before applying it to Sandoz. This is to make sure you have the idea. You're making me nervous! :)
     
  18. mentat247

    mentat247 Registered User

    Apr 19, 2009
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    Tried the super glue, my vise started to bend! Then the glue failed, this thing is really on tight! Argh!
     
  19. mentat247

    mentat247 Registered User

    Apr 19, 2009
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    I think my problem is my vise. The holding pegs give before the caseback. What vise do you all use? They seem to be at any and all price ranges.
     
  20. le arsi

    le arsi Registered User

    Jul 7, 2008
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    Can you post a pic of your vise?
     
  21. mentat247

    mentat247 Registered User

    Apr 19, 2009
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    Attached is a picture of my vise and a detailed shot of the "flex damage" it recieved under pressure.

    Another note on the superglue, the acetone took it off the crystal easy, but it did not come off the metal easily. The caseback got scratched getting it off. I don't care much about the caseback, I just want to open the thing.

    132.jpg 133.jpg
     
  22. le arsi

    le arsi Registered User

    Jul 7, 2008
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    The kind of vise you have is not good it really slips, try to remove the bracelet and the head link and place the pegs in between the case linker. If still it doesnt move at all. Take a discarded screw driver or knife place the blade on the sides of the back case then apply few taps ( Doug might be right the case is a snap back) if it shows some movement then continue to tap more.
     
  23. mentat247

    mentat247 Registered User

    Apr 19, 2009
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    I opened it! Actually the rolex 29.5 tools worked, the vise was the problem got a table vise that was much more stable. Now I can send the dial off to international for refinishing.

    Thanks for all your help.
     
  24. le arsi

    le arsi Registered User

    Jul 7, 2008
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    Here is my long time use no slip case vise. It's made from carabao horn.
     

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