Copper In watches, copper is the best thing. It is cheap, and the characteristic is extremely easy to process. It is mainly used in movement, and most movement uses brass alloy plywood. Usually the colors of the movement we see are yellow and white. The yellow movement is usually plated with titanium oxide. The white…
What are the precious metal material watch straps? Platinum is a rare and expensive natural pure white metal. It is one of the rarest precious metals for jewelry in the world. Its annual supply is only 5% of gold. It has almost twice the strength of gold and is 30 times rarer than gold. .…
What are the classifications of wireless eaphones? According to the frequency of electromagnetic waves used by wireless headphones, they can be divided into: Infrared (30um~3mm10GHz~1000GHz) wireless headset Meter wave (meter wave 10~1m very high frequency (VHF) 30MHz~300MHz) wireless headset Decimeter wave (decimeter wave 1m~0.1m UHF 300MHz~3000MHz) wireless headset Infrared wireless headset Advantages: At present, the…
What are the features of wireless earphones? Features 1. With wireless transmission, wireless monitoring, wireless voice chat and other functions; 2. With a professional learning program, you can learn the functions of various home appliance remote controls (TV, VCR, DVB, DVD, etc.), and can also be used as a digital set-top box remote control. 2.…
What are the types of mechanical movement? Guangzhou Pearl mechanical movement. Because the structure is imitated Japan’s Citizen mechanical movement, many buyers call it the “Citizen” movement, and they have slapped the ball! It is commonly called “disposable mechanical movement” in the circle. This movement imitates the Citizen movement, but does not inherit its quality.…
Japan imported disposable plastic quartz movement, commonly known as “black movement” in the circle. Most sellers call it “Japanese OS80 movement”. This movement, either not broken, can last a long time. Once it gets damaged, it can’t be repaired. The only way is to throw it away. Japanese original 2035 quartz movement, this type of…
How to deal with water in the watch? Because water will cause mechanical corrosion, it is very destructive. The sea water is even more untouchable. Even if the waterproof meter is indicated, there is only one year of waterproof protection. Because the waterproof ring of the watch will wear out after a whole year of…
There are several important related indicators when the watch uses the instrument to test the swing amplitude. Swing drop: The watch is in two states: full string and after 24 hours of actual running. Measure the swing amplitude changes of the five positions on two planes (top and bottom) and three vertical planes (bottom, left,…
The appearance of the watch can be inspected from the outer shell, the mirror, the dial, and the hour, minute, and second hands. The case should be free of blisters and obvious scratches, with symmetrical edges and corners. The screw joint between the back cover and the upper shell should be tight. The two watch…
As far as the financial capacity permits, two or three watches may be replaced in daily life. Wear a mechanical watch when performing static activities, and wear a sports watch when engaging in sports. The use of time and local conditions will help extend the service life of the watch. Mechanical watches are driven by…
