I don't think it's a 363, unless somebody has the wrong info.
My Paulsons shows a 363 like this.
View attachment 411188
Whereas the OPs movement looks more like the 340 family.
View attachment 411187
But even more confusing is the mention of a date, so maybe it's an AS806?
Ranfft shows a lot of movements with the same picture as that of the 363. Could be a 340. We would need to see behind the dial to be any more certain. And even then.........!
Pic from Dr Ranfft.
What is the diameter of the movement?
Click to expand...