How to measure this glass

[rbfesquire]

Hi guys,

I have this lovely old Seiko, but the glass is broke. Round glasses, obviously are done by diameter. However, the sizes come with dimensions of, for example  MBr 139x139.1 Sternkreuz. How do you figure out what size it is, and what you need?

[oldhippy]

You use the numbers on the back of the case when ordering a new glass.

Edited October 20, 2016 by oldhippy

[rbfesquire]

20 minutes ago, oldhippy said:

You use the numbers on the back of the case when ordering a new glass.

Hi, I have tried that. Unfortunately it is out of production.

 

[bobm12]

Check boley for a part number and you will probably be able to find a generic on borel or ofrei. If that fails, contact them directly. They have custom and fitting crystal service (borel mainly: Rosemary (?) their glass person does that, she is there twice a week: Tue and Thurs (?) ).

[Shoshone]

I don't mean to hijack the thread, but I have a similar question.  Trying to find the crystal for Bulova marked R320C .  I see a reference to it here, but not available:

http://cgi.julesborel.com/cgi-bin/matcgi2?ref=BUL_CS^R320C

 

Here are some pictures. Thanks for any input!

 

 

 

[rbfesquire]

I take it that the silver rim is for an armoured Plexiglas?

Sent from my HTC One M9 using Tapatalk

[Shoshone]

The rim looks like it is separate from the case. I tried to lift it away by using a razor to open a gap but it is on tight.  You can also see what looks like a white nylon spacer in the case. 

I don't think that the rim is removable.

[rbfesquire]

The white rim should be removable. Didn't notice that [emoji23]

Take the seal out, then measure the inside where the glass sits. It looks quite deep so measure that too.

Once you have the case width, find the seal size on cousins gasket finder. This will also give you the glass width. Then just order the relevant glass thickness and width. Order one a bit bigger as sometimes the glass comes out a bit small.

Judging by the depth it'll be an L gasket. I always order a new one.
https://www.cousinsuk.com/product/l-ring-for-180mm-to-200mm-glasses-sternkreuz




Sent from my HTC One M9 using Tapatalk

[StuartBaker104]

Back to the OP - did you try searching for the Seiko crystal on ebay?

What is the case number?

[rbfesquire]

Tried everything. Only other hope is an eBay follow [emoji17]

Sent from my HTC One M9 using Tapatalk

[oldhippy]

Try this using google there's loads of places. You should be able to find one.

custom made watch glasses

[ro63rto]

Tried everything. Only other hope is an eBay follow [emoji17]

Sent from my HTC One M9 using Tapatalk

What is the xxxx-xxxx number on the caseback and at the bottom of the dial?