USSR stopwatch from the 1970s weighing 230 grams. The watch contains 0.014 grams of gold and 0.12 grams of silver, has 20 stones, two hands and three pushers. The stopwatch is in a very Good condition, as can be seen in the attached photos, and runs perfectly. The back is covered with a protective layer that becomes shiny when scraped. The dimensions of the box are 13 x 10 x 4.5 ст. The mechanism consists of 3 wheels and a spring drive for the escape wheel. There is a counter for the central seconds and an additional gear train with seconds division. The power and counting wheel system is designed with precision division. The high-quality mechanism allows for a stopwatch with many wheels and stones. Another interesting feature of the stopwatch is its balance frequency of 36,000 vibrations per hour. This frequency makes it possible to measure time intervals with an accuracy of tenths of a second. To ensure this high level of accuracy, the mechanism of this stopwatch has been manufactured to the highest standards. The scheme of the mechanism comes from the Swiss company.