Be careful where you park your watch (magnetism lesson; why my watch ran fast)

[mountainjogger]

A couple of months ago my Explorer I began to run about 15 second fast per day (as checked against newly uploaded official time). I was not a happy camper.

Fortunately it is still under original Rolex manufacturer warranty so I took it to my AD.

When I got it back, the AD told me that it had to be de-magnitized and to keep it away from whatever source of magnetism I was exposing it to.

I was a little skeptical but tried downloading an app for my iphone 3gs which measures magnetic fields.

The answer? I was storing the watch in the evening near my macbook pro which has a magnetic coupler for the power cord. It sent the iphone app off the chart.

Upside? My Explorer I is now running better than w/1 second per day and I have learned a valuable lesson. Watch out for magnetic fields in computers and be careful where you park your watch when you take your boots off for the night!