Gruen Quadron 157 Crystal

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slinfiniti
Posts: 174
Joined: Wed Feb 22, 2012 5:41 am

Gruen Quadron 157 Crystal

#1 Post by slinfiniti » Sun Apr 09, 2017 12:38 pm

I am searching for a crystal for my recently acquired Quadron. The crystal that came with the watch has to be the wrong one.

Please see pics below

I have tired to measure as accurately as possible. Quadron owners know about the unusual crystal installation. There is a metal frame that the crystal rest on, the frame then goes in the in the watch.
Frame Crystal Out Updated.jpg
Frame Crystal Out Updated.jpg (64.29 KiB) Viewed 247 times
The crystal that came with the watch has a slight curvature to it. I think I need more of a flat one
Side Profile.jpg
Side Profile.jpg (35.61 KiB) Viewed 247 times
As you can see it is curved, this does do work with this crystal design. I would appreciate your help.

Inside Case Back.JPG
Inside Case Back.JPG (72.2 KiB) Viewed 247 times
I have attached a picture of the inside case stamps for reference

3 Pieces.JPG
3 Pieces.JPG (57.66 KiB) Viewed 247 times
This is the set up, Bezel, frame and crystal
Frame and Crystal.JPG
Frame and Crystal.JPG (50.38 KiB) Viewed 247 times
This is a picture of the crystal resting on the bezel

User avatar
slinfiniti
Posts: 174
Joined: Wed Feb 22, 2012 5:41 am

Re: Gruen Quadron 157 Crystal

#2 Post by slinfiniti » Wed May 10, 2017 2:36 am

I am still seeking my Quadron Crystal. I now have a need for an additional Quadron crystal with the same design set up with a crystal frame. The dimensions are as follows:

15.90MM Wide
22.45MM Long
1.32MM Thick

It is important to not that it is a relatively flat crystal. It does not have a noticeable curve.

I would love your help

Squash61
Posts: 792
Joined: Sat Mar 17, 2012 11:47 am

Re: Gruen Quadron 157 Crystal

#3 Post by Squash61 » Wed May 10, 2017 3:27 am

I'll look and get back with you.

Squash61
Posts: 792
Joined: Sat Mar 17, 2012 11:47 am

Re: Gruen Quadron 157 Crystal

#4 Post by Squash61 » Wed May 10, 2017 6:22 am

I have both of them. Check your PM

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