Jump to content
  • 0
Lc130

What type crystal?

Question

Hi All

I'm a beginner trying to determine what type of crystal to order.  The supply house describes them as glued in, compression fit or tension ring.

They would be for a Waltham and Sears Tradition.  Both from late 60's early 70's.  

I was able to easily pop both crystals out.  The Sears crystal has a smooth edge and the Waltham has a lip. Neither had a gasket or ring.

Almost impossible to get clear pictures but these are looking at the inner wall of the case, top up (Sears first)

Any ideas of the type of crystals?

Thank you

Charlie

 

 

 

 

 

 

 

 

sears.jpg

waltham.jpg

Share this post


Link to post
Share on other sites

10 answers to this question

Recommended Posts

  • 0

These would almost certainly be compression fit. If you can't find something that is an exact match to the size you need, err to the large side, and you can sand it down a bit if needed.

Share this post


Link to post
Share on other sites
  • 0

I would say if they do not have sweep seconds hands Low dome will fit. High dome if they have sweep seconds. Measure from 12 to 6 or 9 to 3. What tool do you have for fitting crystals?

Just a thought did the old ones have a ring inside the crystal?

Share this post


Link to post
Share on other sites
  • 0

No crystal ring inside either. Both have second hands.  I have a crystal press but not a crystal lift.  Do I need one?

Share this post


Link to post
Share on other sites
  • 0

The bezel looks deep enough. That tool will squeeze the crystal when it picks it up, so a slightly bigger size will fit in.  

 

Go here and look for HD BCL 30.2 then click on Alternatives a small window will open that is what you need buy 2 one for each.  

https://www.cousinsuk.com/product/domed-high-bcl-bhd

I do not understand all the info from your link. You could phone and tell them what you want. 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×