This one came to as a full set with original box and some papers. The original instructions for how to set the date/day whitout damaging the movement is still in the box. Very nice!
The last owner did clearly not read the instructions as the watch had some serious issues with the day mechanism.
Never ever change the date between 8 PM and 3AM it will damage the mechanism and the day will not shift as it should.
The only solution is to remove hands and dial to get access to the problem. If you know what to do this is a easy fix. The running second hand was also missing. Happily I had a spare in my part box.
All back together again and I have a lovely tool watch made by my favorite brand Heuer.