There is a miniature satellite gear in the perpetual calendar that rotates once every four years, so that it can automatically and accurately display the day, month, week and moon phase profit and loss without errors due to leap years
In 1795, the invention of the tourbillon provided the best way to offset the influence of gravity on the accuracy of the watch. The principle of the tourbillon is to wrap the escapement system with a device and then rotate it once per minute. In this way, the uneven speed can be offset, in addition to offsetting the influence of gravity
These are Swiss inventions, passing down hundreds of years of exquisite skills, and also include many patented technologies, purely handmade. production, so very expensive.
Technology cannot catch up with those top countries in a day or two. There are no tools and no tools to make tools. China's basic industry is still very weak.
"Question watch" is really a strange name, but when you think of the time reporting function of "I ask and it answers", it is easy to understand.
Repeater, that is, a spring watch, usually uses a button or dial on the watch case to activate a series of devices to make sounds to report the time at that time.
The minute repeater is a three-reed watch. The sounds of the three reeds are different, and the time of "hour", "quarter" and "minute" can be distinguished. It is a combination of acoustics and dynamics. The result of clever use.
Time reporting method: Turn the dial of the minute repeater, and it will continuously emit pleasant tones. The low tone is to tell time, for example: "when, when, when", 3 rings is 3 o'clock. Then there is the quarter mark, which is usually a combination of high and low sounds, such as: "Ding Dang, Ding Dang", which is two quarters (30 minutes). Next, the high-pitched tone is to report the score, for example: "ding, ding, ding, ding, ding". 5 rings are 5 minutes, so the current time is 3:35.
The mechanical principle of the minute repeater watch
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It doesn’t matter if you can’t understand the text below. You just need to imagine that there is an extra inch in the watch case. With a set of chain springs, two hammers, three ways of hammering, and N gears... you can understand why minute repeaters are so expensive.
The minute repeater watch has an extremely complex mechanical device, which must convert the time display into a series of gongs expressing hours, quarters and minutes. The chain spring of the minute repeater first accumulates the energy required to tell the time through the vertical operation of the lever. At the same time, the hour, quarter-hour and minute bezels have also been wound up and ready to enter the chime position. When starting, the energy released by the chain spring is supplied to the speed regulator. The latter operates based on the principle of centrifugal force to keep the hammer striking rate constant. The two hammers hit bass, treble and high and low sounds respectively. .
The soul of the minute repeater - tone
Although the mechanical principle of the minute repeater is complex, it is not mysterious. Therefore, the sound quality of the time has become a decisive factor in evaluating the quality of the minute repeater. Determines the price. Cheaper watches may sound a little muddy and messy, but minute repeaters with millions of dollars must have ringing sounds that are well-organized, clear, and exciting.
Time can be listened to. People who love watches like to hold their breath and listen to the crisp ticking sound of the escapement in the dead of night, and feel the flow of time. This is a kind of listening. The other is the wonderful sound of the minute repeater. You will sincerely marvel at the amazing mechanical craftsmanship.
Special timbre: Most of the bells and whistles have a structure of two hammers striking their respective reeds. If there are three or more sets of hammer springs, a beautiful chiming sound is formed. Repeater), especially the four-hammer repeater, will have richer timbre changes when reporting the quarter hour. In addition, there is also a music table that can play a beautiful melody at a specific moment.
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