I'm the proud owner of a PP 5146 that I wear daily. I love everything about it, the looks, the feel and the fact that no one at work has any idea what it is. Not considered flashy like a Rolex,Omega, or even TAG. When it comes time to adjust the watch at the end of February, I want to keep the process as simple as possible and minimize the risk of getting it out of sync. Can I just wait until the watch reads March 1 and then just advance the date? This would leave the day,month and moon phase in correct position. It also keeps me from adjusting anything while the month is in its 2 day period of advancing. Also, does the annual calender take February to 29 or 31 days?