THE JOURNAL
Watch website teaches you to understand these professional watch terms and become an expert in minutes
Accuracy
Timepieces are among the oldest inventions; as early as 1300 years ago, people invented the sundial as a simple tool for keeping time. This can be considered the most primitive form of a clock. Timepieces are mechanical devices that require high precision. If a movement gains or loses 30 seconds a day, mathematically, the error is 0.035%, meaning the accuracy is 99.965%. It is known that officially certified chronometers must have an error rate lower than 0.005%.
Adjustment
WatchSometimes issues may arise, such as an incorrect date display or the calendar changing at noon; in these cases, the watch requires adjustment. Adjustment parameters include temperature, position, and isochronism. High-end timepieces usually undergo 8 procedures involving cold, heat, and 5 positions. Temperature adjustment generally refers to 4°C, 20°C, and 38°C.

空气钟
顾名思义,以大气温度差作为能源动力来保证钟表的运行,既不需要上链,也不要电池,这就是空气钟。而最为著名的便是积家的空气钟。
自动上链
佩戴腕表的手臂在日常生活中的摆动可以带动手表内的自动盘,自动盘的转动从而旋紧主发条。这种上链方式被称为自动上链。最早的自动上链计时是在18世纪,名为伯莱特的人说发明的。

Power reserve
Nowadays, many mechanical watches feature a power reserve indicator. What is the purpose of a power reserve? It indicates the energy status of the mainspring and the remaining running time. Between two consecutive windings, the running time (usually 24 hours for a standard watch, or 7 days for a clock) typically provides 10-16 hours of operation.
Cabinotiers
Cabinotiers were common in Geneva during the 18 and 19 centuries, as their attics served as their workshops. They were independent watchmakers and masters of these attic workshops, and naturally, they were quite wealthy. Cabinotiers were the pillars of the Genevan watchmaking industry; it is because of their existence that the city became the capital of watchmaking and earned its reputation as the home of horology.
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