Strange, indeed
By: amanico : April 18th, 2009-23:21
I'm not a watchmaker, so it is impossible to me to give you a realistic explanation, but if your watch works fine, and if you can change the date by moveing the hour hand, it may not sound a very serious problem.
Did you already send your watch for a service?
If you own it for around 5 years, it may be time to do it, and to include this problem in the service...
Best,
Nicolas