Do you know the gems in the movement? Binlun Watch Brand Encyclopedia tells you that the so-called gem in the movement refers to the functional diamond of the watch. There are four main types: first, it is used as a shaft hole, commonly known as "drilling", embedded in a certain part to make the shaft contact with the drilling hole. Second, it is used as a cover plate, commonly known as "supporting drill", which is equivalent to a bearing in machinery and can limit the up-and-down shaking of the shaft tenon. Third, it is a round drill for placing nails. Fourthly, it is a rectangular cylindrical diamond, which is used to make tiles or ride feet. Functional drill is the best material for bearings, pins, fork shoes and other moving parts of gear train in watch movement. The more gems in the watch movement, the better? The movement of the mechanical movement of a watch must rely on various gears to continuously transmit power. Before the important function of ruby was recognized, the rotating shaft, the escapement fork, the pendulum shaft and the wheels of the planetary gear train were all screwed into the holes of the brass splint. Imagine that the shaft keeps turning on the copper floor or splint, just like drilling wood to make a fire. Friction will not only bring wear. The generated metal chips will affect the performance of lubricating oil, and as a result, the rotating spindle pressure and friction damage caused by high speed make the movement unbearable. Until 1700, a Swiss and two French talents discovered that the drilled ruby can greatly reduce friction and damage, and can significantly improve the life of the movement, and it has been widely used since then. However, due to the high cost, only high-end movements were used at that time. From 65438 to 0902, artificial rubies were widely used, and the main component was alumina, which had the same properties as natural rubies. So simply speaking, the gem bearing is the protective stone of the gear shaft. It is fixed on the splint with a perforated ruby shaft eye and embedded in the wrist watch to play a bearing role. Because the gem bearing is used to protect the gear shaft, the more natural gears, the more gem bearings. Generally speaking, the more gem bearings, the more complicated the movement. However, complexity is not everything, and it is impossible to judge the quality of a movement only by the number of gems. The number of rubies in the table reflects the design style, exquisite craftsmanship and ingenious craftsmanship. Diamonds within 25 are functional diamonds; As long as the function, winding, automatic winding, calendar, double calendar; There is no difference, two wheels, three wheels, the second wheel, the escape wheel; 2 X 4 = 8 diamonds. Two drills for the upper and lower shock absorbers of the balance wheel; 2 X 2 = 4 drills, two for the escapement fork and fork shoe respectively; 2×2 = 4 drills, one at the top of the disc; 1 drill, that is, 17 drill of standard basic movement.