Do we stand any chance to be on time >
'Précisions utiles'
Things to know about the accuracy of a mechanical watch:
The precision of a mechanical watch depends on the latitude: a mechanical watch regulated at the equator advances 226 seconds per day with the pole.
This precision also depends on the barometric pressure, from where the need to make a correction of the pushed air, and of the temperature, because of dilations. This last factor is most important: The length of the pendulum of a mechanical watch increases when the temperature rises. With a steel stem, a watch delays 0,5 second per day when the temperature increases by 1 degree Celsius
I tell you what instead of learning how to change a strap, I think we ought to be qualified in regulating our timepieces, this way, each day we can spend half hour regulating our piece and be on time on the day :-)
Yves.
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