A watch has a pendulum of 35 cm in length
A watch has a pendulum of 35 cm in length. To regulate its operation, it has a adjusting nut that shortens the length of the 1 mm pendulum to each full rotation on the right and stretches this length of 1 mm with each complete rotation on the left. If the watch delays one minute a day, indicate the approximate number of nut revolutions and its direction required for it to function properly.
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