A little strange...

[Castor]

I have now had my Polar Explorer II (216570) for almost a year. In all this time it has never kept really exceptional time (sometimes gaining up to 15 seconds a day). The problem went so far as to prompt me to send it to RSC to be regulated.

Consistently the watch is between 5 to 8 seconds fast per day. Over the last 2 or three days I haven't been wearing it and when I checked it this morning on time.gov it was not just within standard, it was absolutely dead on in accuracy! In three days it did not gain or lose a single second when not on the wrist, but when wearing it, it gains time.

Has this occurred to anyone else? And is there a reason for it?

[Thatguy]

The amount of activity when worn will affect it.

[cop414]

It's telling you that once you put in on you should be very, very still....
Not quite sure what to make of that. Are you still under warranty?
I would say that +5 to +8 is just out of COSC standards.

[Tools]

A worn watch will almost always run faster than one on a winder.. Your movements keep the balance from making a complete oscillation, effectively shortening it's swing/timing and making the watch tick faster..

[lland]

Mine runs about -3/day when on the winder but dead on when I'm wearing it.

LL

[Speed]

How did you chart your watch's variance?

I set my watch to usno time periodically. However, I haven't the patience to obsess about variances. As long as I am close to the minute...I'm good.