Precision of SS GMT II - C

[Derek Leung]

I would like to share this experience and observation with you. I have a SS GMT II - C and recently noticed this. I re-set the watch on October 1, I beleive most of us did that becaue September was a short month. Anyway, I did the following:

1. Pulled the crown all the way out when the second hand was at the 12 o'clock position getting ready to set it at exactly 00 second;

2. Let say I was going to set it at 8:30:00 am and the current time was 8:28:15 am; when I pull the crown all the way out the second hand was at 00 second already, now I set the watch to 8:30:00 second and wait for the "real time" the arrive. When 8:30:00 am arrived, I pushed the crown all back in then watch started to run. Everything is simple.

3. I checked the time everyday, in term of accuary it is very good so far, today it is October 17, based on the scond hand, the time on the watch was only 2 seconds behind. However, when looking at the minute hand, it was about half a minute behind, i.e. when the second hand reaches the 12 o'clock position, one would expect the minute hand to be exactly at the "minute mark". In fact it is in between 2 "minute marks". I think this is "quality" of the running gears, because I would expect the minute hand is geared to the second hand likewise the hour hand is geared to the minute hand, so when the second hand goes around once, i.e. for one minute, the minute hand goes to one minute marking, i.e. 6 degrees, similarly for the hour hand.


Does anyone has this kind of experience or observations. Please share with us.

P.S. I took the watch to RSC, the service person could not explain and said it should not happen this way.