Inherited Vintage Longines Cal. 12.68Z (Ref. 1938) from 1937

Simon69 · 2026-08-06T12:00:39-0500

Hi Everyone,
I would like to share this beautiful vintage Longines that has been in my family. I managed to have it opened by a watchmaker to document it fully, and here are the details:

- Movement: Longines Caliber 12.68Z. Serial number is 5,597,108, which seems to date it to late 1937 or early 1938. It is running well.
- Case: Staybrite stainless steel case, Inner Caseback is stamped with Reference 1938.
- Dial: It has an untouched military/explorer style dial with gorgeous tropical patina and original cathedral hands.

I am planning to sell this piece in the near future to a collector who appreciates it, but first, I would love to hear your expert opinions on its authenticity, exact history, and fair market value. Any insights would be highly appreciated!
Thank you!