IWC Calibre 67 Pocket Watch

Hi all, 

Firstly hello and thank you for the forum! 

I have purchased my first complete IWC pocket watch (I also have a few movements as projects) so I thought now was a good time to join the forum after lurking for a while!

 

I believe it is a high grade Calibre 67 from 1937 with a beautifully chamfered, thin Staybrite case and a very attractive dial. From my research I have not managed to find another example with this particular design, nor the movement finished to this grade with a regulator lever. Am I correct in thinking this is a rarer example? Any other information about it would be really appreciated!

Thanks!

 

Edit: in my initial excitement I did not look closely enough at the movement which has 97 stamped on it. Which also explains why I could find any 67s of a comparable design!