Hello there !
The "dark" one arrived yesterday. Awful mesh, scratched plexi, the day disk was "turning" by himself while shaking the watch ... and the movement was playing castanets in the case = missing case spring.
Thanks to the wonderful PDF found in the sticky thread I've been able to set back the day disk to work.
As I've ordered 2 spares springs "just in case" last week, I've been able to fix that issue to. After a little polishing (plexi and case) and clean up of dial, alarm ring and hands, I've mounted it on a 20mm (reduced to 19mm) black leather with clasp.
I'm (again) quite happy with the result !



Serial number starting with 0N (so November 1970) for this one.
Hermann, I'll provide you with caseback pictures whenever I receive the 3rd 4006 (-:
have a nice day,
Olivier