I got my Khaki Field Auto in February and love it. For the most part it is quite accurate. It generally loses a couple of seconds during the day and if placed face down at night, seems to gain them back. Then....and this is the issue, after a month of fairly consistent behavior, it will suddenly lose 20-30 seconds a day for three or four days. There is nothing in my daily routine which seems to bring this on. Can it be that the date complication mechanism creates the problem, or..... the automatic winding mechanism is not sufficiently winding the mainspring and it has little reserve left by that time of the month? If such a thing were possible....or some other reason?
Troubleshooting ideas welcome!