The next standard is correct oiling of wheel pivots in their jeweled bearings. When it comes to oiling, less is more. Using the right amount of oil, and applying it in the right places, is essential to avoid wear and tear.

        The standard wristwatch beats between 18,000 and 36,000 times per hour. It isn’t difficult to see how a movement can wear down very quickly without correct oiling! In the photo below, I demonstrate the proper amount of oil in a jeweled bearing. The oil must be precisely in this location, where surface tension holds it against the wheel pivot. If the oil is applied even slightly incorrectly – such as on the edge of the jewel – it will not lubricate the pivot correctly, and the pivot will run dry and decrease the service interval.