: How would you like to do it yourself for free and with no risk? Keep in mind
: that because of gravity, a mechanical watch runs a little differently in
: different positions. Also remember that each time you open your watch, you
: have to have the whole thing pressure tested again to make sure the
: water-resistant seals were put back right. So it is best to avoid
: unnecessary opening of the case!
: Try this: Before you go to bed, check the accuracy of your watch against a
: reliable time source. Write the information down, then place your watch on
: the nightstand and go to sleep. When you wake up, measure the accuracy
: again, write it down, and put the watch on.
: For the next several days, keep doing the same thing EXCEPT put the watch in
: a different position each night. Try face up, face down, crown up, crown
: down, 12 o'clock high, and 6 o'clock high.
: After you have tried all the positions, you have a list showing exactly how
: much your watch gets off during the day AND how much it gains or loses in
: each possible position at night. Find the position to keep it at night
: that does the most to cancel out the variation the watch experiences
: during the day.
: Since your watch loses 5 seconds per day, if you can find a position in which
: the watch GAINS about 5 seconds overnight, then simply by putting your
: watch in the right position at night, you cancel out most of the day
: variation and have a very accurate watch without opening it!
