Of course, the most obvious advantage of the 9F is its supreme accuracy. The least accurate 9F is rated for 10 seconds a year, relative to 15 seconds a month for an ordinary quartz. Many 9F movements are rated for an astonishing 5 seconds a year, tying them for the most accurate movement in the world. This achievement is made possible by several technologies, perhaps most notably thermocompensation, which helps the 9F defeat quartz’s worst enemy, temperature. The movement detects changes in temperature over 500 times a day and compensates for these changes in order to minimize the impact of temperature.

沒想到這個表還有溫度偵測功能,作誤差的補償作用,每天高達500次.聽節目中介紹,它的秒針行走每一秋,都精準指向每一秒鐘的刻度上.