Reason 1 for errors in mechanical watches
Influence of swing amplitude: The tightness of the spring will directly affect the amplitude of the balance wheel, and therefore also affect the isochronous performance of the mechanical watch. The so-called “isochrony” refers to a phenomenon that the amplitude of the oscillating object does not affect the vibration period. However, the balance wheel and hairspring system in the mechanical watch does not oscillate freely. It frequently impacts and collides with the escapement components. It is a “forced + free” combined vibration state, so it must be affected by the escapement system. The size of the impulse torque determines the size of the swing, and also determines the time for their relationship to occur. Of course, the shorter the time, the better.
Reason 2 for errors in mechanical watches
Impact of position changes: The main position changes are changes in planes and vertical planes. There are 2 planes (surface upward and surface downward) and only 3 elevations (they are: watch handle down, watch handle to the left, watch handle to the left, watch handle to the left, watch handle to the left, watch handle to the left, watch handle to the left The crown will move upward) and the crown will move to the right when worn normally, so there are a total of 5 positions. The change in position first results in a change in the friction surface of the balance shaft tenon. The friction surface increases. Secondly, the imbalance of the balance wheel becomes more obvious and prominent under the action of gravity. Additional torque acts on the rapidly swinging pendulum. The gravitational effect of the balance wheel and hairspring on the wheel and the hairspring cause the oscillation cycle of the watch’s balance wheel and hairspring system to be affected by different sizes at each position.
Reason 3 for errors in mechanical watches
The influence of the hairspring speed clamp: Most mechanical watches have a hairspring speed clamp. The function of the speed clamp is to conveniently correct the travel time accuracy. However, because there is a gap between the speed clamp and the hairspring, it is also called the “dang kuang gap”. This greatly destroys the isochronism of the mechanical watch and increases the position error of the mechanical watch.
Reason 4 for errors in mechanical watches
Impact of shock and vibration: Severe shock and vibration also have an impact on the vibration cycle of the balance wheel, especially low-swing or low-frequency mechanical watches. As for severe shock and vibration that has damaged the balance shaft tenon or hairspring, it will inevitably continue to occur. Cause time failure to mechanical watches.
Reason 5 for errors in mechanical watches
Influence of magnetic field: Many mechanical watch movement parts are made of steel, so they are easily magnetized, including nickel-based hairsprings, which are also weakly magnetic. When a mechanical watch is exposed to an external magnetic field or the parts have been magnetized, the balance wheel The oscillation period will be greatly disturbed by magnetism, and usually the mechanical watch moves very fast.
Reason 6 for errors in mechanical watches
Effect of temperature changes: Temperature changes will also change the geometric dimensions of the balance wheel and hairspring. Every tiny change in these key components will directly affect the oscillation period. Temperature will also change the viscosity of the surface oil. , thus causing changes in the torque transmission and swing of the mechanical watch wheel train.
Reason 7 for errors in mechanical watches
Other factors: Mainly because the mechanical watch case is not tightly sealed, moisture, moisture and changes in air pressure will affect the travel time accuracy of the mechanical watch. It is also easy for fine dust and foreign matter to enter the watch, affecting the mechanical watch parts. Work. There is also a problem called “no needle”, which is a fault of the watch.
In short, I suggest that if you want a mechanical watch to be highly accurate, you must keep the mechanical watch spring relatively full. Generally, flat surfaces on a watch move better than vertical surfaces. The watch case should be well sealed and kept away from magnetic fields and water. Clean and oil your watch regularly.
What is the normal error of a mechanical watch?
Most top replica watches have mechanical movements, and mechanical movements can have errors due to many factors. The international standard for error of general mechanical watches is basically 30 seconds per day (24 hours). Mechanical watches are tested on machines. It will be different from the actual wearing error because the error is affected by many aspects (magnetic field, movement frequency, direction, etc.), so the error of the mechanical watch needs to be understood. This is normal, so everyone must understand this concept. Although we you buy It’s a watch, but it’s also a work of art and a splash of color. Our watches are replicas to the highest degree. With such a low price, you can easily detoxify yourself from luxury goods. You must know that the original product has a two to three second error. These watches can easily cost tens or hundreds of dollars
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