This is an electronic watch, indicating that it is night, which is represented by the moon and stars. At present, there seems to be no watch with the moon and stars on the market. The following is the introduction of the electronic watch:

Electronic watch is a new type of timer that only appeared in 1950s. The earliest electronic watch is the prototype of the electronic watch released by Elgin Company and Lip Watch Company in 1952. This kind of watch is driven by electromagnetic balance wheel instead of clockwork, but the walking part is exactly the same as mechanical watch, so it is called the first generation electronic watch. 1960, bulova company of the United States first began to sell "Akron" brand tuning fork electronic watches. This kind of watch takes the oscillation frequency of the tuning fork as the benchmark of walking time, and its structure is simpler and more accurate than that of pendulum electronic watch, so it is called the second generation electronic watch. 196965438+In February, Seiko House Corporation of Japan launched a 35SQ electronic watch. This is the earliest electronic watch in the world. This kind of watch is based on the natural oscillation frequency of the time, and controls a micro-motor through an electronic circuit to drive the hands. It is called the third generation electronic watch. Timely electronic watches are very popular with customers because of their accurate timing and simple structure, and many performance indexes exceed those of mechanical watches. Soon after its appearance, the first and second generation electronic watches were eliminated. From the first generation to the third generation, electronic watches have always maintained the dial surface of traditional watches, but the fourth generation electronic watches-timely electronic watches with digital display, completely broke away from the form of mechanical watches, and finally formed a brand-new timepiece. Digital electronic watches use light-emitting diodes or liquid crystals as display elements, and directly use numbers to indicate time. The whole watch is composed of a timepiece crystal, an integrated circuit, a display screen and a battery, and has no moving parts, so it is also called an "all-electronic watch". The earliest all-electronic watch in the world is the digital display electronic watch of pulsar, which was sold by Hamilton Company of the United States in 1972. Watches used light-emitting diodes as display elements, and the price at that time was 2000 dollars.