How to adjust the time and date of Polaris clock?

Press the "A" key to adjust the time and date of Polaris clock.

The "A" key is to enter the time setting state, and the year flashes. You can change the year by pressing "b" or "c". After modification, press "A" to switch the flashing to Gregorian calendar month, and press "B" or "C" to modify the month. You can set the day, hour, minute and second in the same way. Press the "A" or "D" key to exit the time setting and return to the normal time state.

Polaris clock belongs to Yantai Gem Clock Factory. In July 2005, Mr. Li Dongshan, a national industrialist, opened the first mechanical clock factory in Yantai. 19 18 years, Bao Watch Factory produced the first batch of mechanical pendulum clocks. From the end of 1920s to the beginning of 1930s, Yantai successively set up watch factories such as Yongkang, Yongye and Ciye, producing mechanical clocks of such brands as Bao, Yong, Sheng and Ye.

Development background

In the mid-1930s, Yantai clock industry reached its peak, with an annual output of 654.38+600,000. According to the newspaper report of that year, people in society also use salt to buy goods. At that time, the news spread all over the country, and commodity sales were booming day by day, reaching Liaoning, Jilin and Heilongjiang provinces and cities in the north and Annan, Myanmar, Singapore and Nanyang Islands in the south. You can sell it anywhere with convenient transportation.

Yantai clocks and watches have been branded with strong patriotism and national spirit since their birth. It is this that attracts the attention of patriots. 1933, the overseas Chinese company in Singapore, which is responsible for supporting domestic products, came to Yantai to order watches and clocks, and Yantai watches and clocks became famous in Southeast Asian countries. Since the early 1930s, more than a dozen Yantai clock makers have successively set up watch factories in Tianjin, Qingdao, Shenyang, Dandong, Shanghai, Beijing and other places independently or in cooperation with others, and spread the technology of making mechanical clocks to various places.