Vintage Gruen
The forum for Gruen watch enthusiasts.

Home » The Gruen Model Database » The caliber database » Possible Caliber 60 (21J sister to Cal 35) - Madretsch - 17’” Open Face
Re: Unknown Madretsch OF Caliber — 10 Size/17L — 21J [message #13233 is a reply to message #13230] Mon, 10 August 2020 18:49 Go to previous messageGo to previous message
thesnark17 is currently offline  thesnark17
Messages: 651
Registered: January 2017
Gruen Master
I still couldn't believe this, so I dug around in my parts and turned up a parts caliber 35. Interestingly, it is *both* 17 ligne and 17.75 ligne!

The base movement is 17 ligne... and there's a removable spacer ring around it to bring it up to exactly 12 size (17 3/4 ligne). When I measured my cased caliber 35 to confirm the size (earlier message), that is what I had measured (It fits as a bezel around the outside of the dial). But actually the movement is not so large!

Yours has no spacer ring, but it's just a friction fit, so easily removed/discarded. I think that's enough evidence to say this is indeed a caliber 35, and that it is 17''' for interchange purposes.

So convoluted...

I will take some photos for proof.

[Updated on: Mon, 10 August 2020 18:53]

Report message to a moderator

 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: Caliber 861 -- Factory L -- and a magic show
Next Topic: The caliber 35
Goto Forum:
  


Current Time: Wed Jun 26 14:41:29 UTC 2024

Total time taken to generate the page: 0.01507 seconds