Entry 11 - Watch Problem

I just changed the battery of my Lacoste watch last January 8, 2011 but it already is stopping from time to time so I had it checked-up.  The repair shop checked it and is not certain yet if the battery is the problem or if it is a problem with the watch's mechanics.  They want to observe it for two weeks before giving an assessment and I agreed to it since I want to find out what really is causing the problem.  The watch is important to me because it was given to me by my girlfriend.