Help Finding Crystal

Discussion in 'Watch Repair' started by GeneJockey, Jun 2, 2019.

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  1. GeneJockey

    GeneJockey Registered User
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    Mar 2, 2012
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    I have 4 Lord Elgin 'Aquamaster' watches from the late 1960s. They all have the same crystal - 32 mm armored, flat top. Two, I can live with. One has been replaced with a domed crystal that is too small and tries to fall out, and one is scratched all to hell and gone.

    IMG_1800.jpg

    Trying to be self reliant, I depended on the pictures in the G-S catalog, and bought a 'ThinTite' crystal - armored, low profile, flat top.

    Turns out the profile is TOO low, and they stop the second hand. Okay, so not that.

    So then I tried a 'AngleTite' crystal - too tall. Sits WAY high. Also the beveled edge is distracting. Not right.

    Here's what it looks like from the side:

    IMG_1802.jpg

    And here's how tall the profile is - 2.5mm

    IMG_1803.JPG

    I figure 1mm thick, with a 1.5mm skirt. This one WAS armored, but I lost the ring.

    The opening measure 32mm.

    Any ideas?
     
  2. GeneJockey

    GeneJockey Registered User
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    Here are pictures of the crystals in place.

    IMG_1805.jpg IMG_1806.jpg
     
  3. Chris Radek

    Chris Radek Registered User
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    So frustrating and so typical, it's not just you. I think the GS catalog is bad. If it even would just say "this is XX mm tall total, and the inside height is YY mm" for each generic style and each of the special crystals, it would be much better. Their sketches are pretty much to scale (assuming you have the book and not the pdf) which is nice, but some numbers would help a lot.

    You might like the Borel TW or TFW?
     
  4. GeneJockey

    GeneJockey Registered User
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    I confess I'm feeling like Goldilocks at this point - "This one's TOO SHORT! This one's TOO TALL!" Does G-S make a 'JustRite' crystal? ;)
     
  5. Peter John

    Peter John Registered User
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    Sep 4, 2018
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    They maybe did, but demand has curtailed what is now available. I have run into this problem with their crystals as well. Peter
     
  6. Dave Coatsworth

    Dave Coatsworth Senior Administrator
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    How about the Tru-Seal waterproof crystals? Would one of those be appropriate?

    Tru-Seal.jpg
     
  7. GeneJockey

    GeneJockey Registered User
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    Are they taller than 2.5mm?

    The inside has a recess for the reflector ring, maybe 1mm, and then another 0.5mm rise, then the flat part is about 1mm thick.
     
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  8. Dave Coatsworth

    Dave Coatsworth Senior Administrator
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    Yeah, sorry. Should have measured before saying anything. They are about 4mm overall height.
     
  9. MrRoundel

    MrRoundel Registered User
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    Is the one you tried, a GS PA 469-6? It is 32.05mm and states it goes on an Elgin, Hamilton, or one other. It seems you have to be super lucky to find the right crystal on vintage wristies on the first, or even second, try. Good luck.
     
  10. GeneJockey

    GeneJockey Registered User
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    So far I've been trying generic round, flat top, armored crystals. I checked out the PA469-6, but it's actually smaller than the 32mm bezel opening. But there's another one that may be closer, so I just ordered 2 of them. We'll see how they work when they get here. If it works, I may buy a few more just to have around...

    I also saw another watch on Ebay, also an Aquamaster, pretty much identical to one of my Lord Elgin Aquamasters, but it's a ZentRa Aquamaster. I knew these weren't put together by Elgin, but apparently they weren't even exclusive to Elgin, either.
     
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  11. GeneJockey

    GeneJockey Registered User
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    Okay, so - DEFINITELY not the G-S 'EvrTite'. Last chance is the PA 469-something-or-others I ordered Tuesday.
     
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  12. kevin h

    kevin h Registered User

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    I put together a nice pocket watch crystal set , I keep seeing these wrist watch crystal "piles" go through the auction I am thinking it might be a good idea to snap them up while they are cheap , but I shiver at the thought of cataloging them
     
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  13. MrRoundel

    MrRoundel Registered User
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    So, GeneJockey, did the GS 469-6 work for you? The suspense is killing me.
     
  14. GeneJockey

    GeneJockey Registered User
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    I'm on vacation now. The crystal arrived the day I left, so I won't know till I get home!
     
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