This is a Waltham 8 day clock found in cockpits of US Navy aircraft during WWII. Even still glows in UV lighting.

Contract no. 84106

ESSC no. 88-C-590

MFR'S Part no. CDIA

The day button actuator works and setting the time works fine. But I can only get the clock to function for a few seconds at a time before it stops. I believe it may just need some maintenance, but I am not watch expert. It also could just easily be my own ignorance of how to operage the clock. It's not like there is a easy to find manual to find on this item. I have yet to find anything. I just only operated it intuitively. Please contact me with any questions and I will be happy to quickly reply. Thanks. Sold as is.