Jump to content

Replacing crystals on modern low cost quartz watches

Paul80
 Share

Recommended Posts

Paul80 WRT Addict

Paul80

Posted
Posted

Hi all

Looking for some advice regarding the replacement of crystals on modern low cost quartz watches, the ones with the thin white nylon gasket.

I really struggle with these with the gasket often popping off when I try the press the glass in place with my crystal press.

It's same if use the original or a new one.

What the secret to fitting this type of crystal and gasket, any tips.

Thanks for any help with this

Paul

Link to comment
Share on other sites
HectorLooi Distinguished Member

HectorLooi

Posted
Posted

I had this problem too. Even broke a few crystals before I learnt how to do it.

If you look at the edge of the crystal, there is a beveled edge and a square, less beveled edge. Intuitively, one would think the beveled edge is there to facilitate easier insertion and should go towards the watch case. But that is wrong. The square edge goes towards the case. And you will need a good crystal press that puts even pressure all round. Make sure you place the crystal carefully so that it doesn't pinch the gasket and damage it. Sometimes the generic gaskets do not fit the case as well as the original one, so be very careful.

The beveled edge is for cosmetic purposes and probably to prevent chipping during daily use.

Hope this solves your problem.

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • BlueHarp
      Pcket watch "Art déco"?

      By BlueHarp · Posted

      I've started trying to use the Betfit, but I don't know which measurement I must take for the caliber. The diameter of the dial side is 40mm, and the other side 36,5mm 🤔.
    • Waggy
      DIY Cleaning Machine

      By Waggy · Posted

      I'm currently 3D printing a new basket and trays for my Pearl machine - I printed one last week in PETG material and it worked well at first. I had taken a calibration cube and soaked it in old cleaning fluid for 8 weeks and then measured it, and there was no discernable swelling or shrinkage and the cube seemed mechanically intact. All went well after the cleaning cycles and then onto the drying cycle..... that's when things went awry. The heat was more than I was expecting and the basket and individual trays warped and deformed, I later found out that PETG is rated to 65°C working temperature (PLA = 54°C) I am now trying to print from nylon (working temperature = +/- 100°C, depending on the specific blend) - but it is extremely difficult to print with, my third attempt is chugging away now while I am at work - hopefully I don't go home to a ball of wool like last time!  Assuming the heating compartment can't go higher than 100°C.... but not second guessing myself...anyone have any ideas or measured it? I also have a question on the trays, maybe I'm not seeing the obvious, but how do you use the ones identified with the arrow? they are called  Basket_for_large_mainplate_and_mainspring.stl Basket_for_small_mainplate_and_mainspring.stl I can see the place for the mainplate, but how are you supposed to place the mainspring, you can't uncoil the mainspring to fit around the outer circumference of the tray or else you would damage the inner tight coils. Is the idea that you supposed to lay it on top of the mainplate?
    • Neverenoughwatches
      DIY Cleaning Machine

      By Neverenoughwatches · Posted

      It is possible to true the pearl basket to run better takes a good hour of filing though.
    • nevenbekriev
      Waltham A-11 Hairspring and Balance assessment help needed.

      By nevenbekriev · Posted

      Yes, the general pat is this. On my diagram the points where the springs rises and levels are marked with red circles. This is only to show on all pictures (the ones that doesn't show this points as they are seen only from aside, not from above) where this points are. On You pictures, the pont where the spring rises is not marked. The point where it levels is marked with A. The point B is where the change in radius should start, but there is sharp bend there which should not be that sharp.
    • Razz
      Watch of Today

      By Razz · Posted

      I agree, very minimalist dial,  but then the diamond. The 1973 R has a black dial and gold case and is similar in layout. But on the MyBulova site there really is nothing else like it...
×
×
  • Create New...