Due to the unique power source of automatic mechanical watches, the hairspring storing power is easily affected by external vibrations. Excessive impact forces such as falling to the ground, violent impacts, and intense wrist movements such as golf can all affect the normal operation of the internal machinery of the watch.

When purchasing an automatic watch, the salesperson may inform you of the power storage time of this movement. For example, a watch equipped with an ETA2824 movement can maintain normal operation for 38 hours while stationary, while an ETA2892 movement is 42 hours. There is an automatic pendulum inside the movement of the automatic watch that can supplement the movement chain with the wearer's movement. Generally, an automatic watch should be worn for 8 hours a day and the wearer needs to maintain effective activity (prolonged sitting in the office is not allowed to chain the watch). If the power storage time of the machine exceeds the limit, the machine will stop running.

The principle of automatic mechanical watch movement is to add an automatic chain component to the manual movement. If you haven't worn it for a long time and stop walking, you can manually add the chain while wearing it. However, due to the fact that an automatic watch is an automatic module connected to the gear components of the automatic clutch and automatic wheel on the basis of a manual movement, excessive manual chaining can increase the risk of wear and tear on the automatic components.

Nowadays, most watches are labeled as waterproof to a depth of 30 meters or more, but don't get me wrong. This does not mean that this watch can allow you to dive to a depth of less than 30 meters. 30 meter waterproof basically means washing your hands and preventing water from entering in a light rain; The CHENS Gentlemen's Series mechanical men's watches are waterproof up to 150 meters, and only those over 100 meters can be waterproof in water. However, don't misunderstand. The waterproofing here is only for water with moderate temperature, and prolonged contact with water close to freezing point at extremely high temperatures can cause serious damage to the waterproof rubber ring of the watch. The waterproof rubber ring can accelerate aging and its waterproof properties can gradually decrease

The first thing to note is that under no circumstances should the watch be disassembled arbitrarily, including disassembling any part of the watch or unscrewing screws. As a last resort, it is necessary to open the back cover and must be done under the proper operation of a professional watchmaker. This will not affect the waterproof effect of the watch.
Most people think that the most crucial waterproof point of a watch is on the back of the watch case, but in fact, the most crucial waterproof point is between the watch handle and the case connection. So it is important to remember to check and ensure that the alignment is tight after daily timing operations.

Insufficient supply of quartz watch batteries can have the following characteristics: 1. The second hand jumps multiple second scales; 2. The watch runs and stops; 3. The second hand jumps and retreats; 4. Watch blocks. When the battery is about to run out of power, the quartz watch will not go slower because the speed of the quartz watch depends on the frequency of the crystal oscillator, and the power supply voltage has little effect on the oscillation frequency. The battery life of a quartz watch is generally around 2 years. It is also reminded that when replacing the battery, do not be greedy for cheap replacement without any guarantee, and must also replace the prototype battery according to regulations.

There are many types of stainless steel, mainly composed of nickel and chromium, while elements such as nickel and chromium are easily corroded by strong acids and alkalis. The sweat excreted by the human body contains hydrochloric acid. When wearing a watch, if it is frequently touched by sweat or allowed to accumulate acid, alkali, and salt stains without timely cleaning, rust spots will gradually appear on the watch strap and black stains will also appear on the wrist. This is mainly due to the contact of nickel and other elements contained in stainless steel with sweat or vinegar, bleach, correction fluid and other chemicals, chemical reagents, cosmetics and other substances in the human body.

If the watch suddenly moves quickly or slowly, it may be magnetized. It is possible that your watch has come into close contact with objects with strong magnetism such as speakers, magnetic buckles, electrical suction doors, security checks, and strong magnetic scans. Magnetism is a common phenomenon nowadays, and it only needs to be demagnetized with specialized equipment at an authorized maintenance department, which has no impact on the performance of watches.