Characteristics of a mechanical watch
This watch is a mechanical watch that runs by a mainspring.
While the loss / gain of a quartz watch is shown by the monthly or yearly rate, the loss / gain of a mechanical watch is shown by the daily rate (loss/gain per one day).
The loss / gain of a mechanical watch changes delicately day by day, depending on various environment or conditions in which the watch is used (such as temperatures, the amount of time the watch has been worn, the amount of arm movement, and the amount that the mainspring is wound up).
A mechanical watch may lose / gain time when it is affected by strong magnetism. If the parts of the watch become magnetized, the watch needs repair including demagnetizing. In this case, consult the retailer from whom the watch was purchased.
Characteristics of tourbillon
This watch is a mechanical watch with a tourbillon mechanism.
Tourbillon is a French word that means “whirl” or “whirlwind.” It comes from watch parts that rotate round and round in a whirling motion.
The tourbillon is a mechanism used to average the influence of gravity caused by a change in the posture of the watch and to stabilize its accuracy by rotating parts such as a balance and an escapement, both used to control the accuracy of the watch, which are contained in a small cage called a “carriage.”
Another characteristic of this mechanism is that you can visually enjoy the sophisticated unique motions of the parts.