Chronometer Watch. Germany, early 20th century.
A pocket chronometer featuring a calendar, stopwatch, and day/night indicator.
From the collection of the National Historical Museum of the Republic of Belarus
A chronometer is a high-precision timepiece that meets the rigorous certification standards of the COSC (Contrôle Officiel Suisse des Chronomètres). Each watch is individually tested and, if it passes, receives an official accuracy certificate called «the Bulletin de marche».
Primat. Switzerland, between 1930 and 1939.
Pocket watch with a sub-second dial
From the collection of the National Historical Museum of the Republic of Belarus
Citizen
From the collection of the National Historical Museum of the Republic of Belarus
The Japanese watch company Citizen was founded in 1930, based on the «Shokosha Watch Research Institute», which had been working since 1918.
In 1931, Citizen made its first wristwatch. In 1952, it produced the first Japanese watch with a calendar.
Step by step, Citizen entered markets in America and other countries. By 1980, Japan became the second largest watchmaker in the world, after Switzerland.
During the 1970s, when quartz watches became very popular, Citizen started making quartz resonators, a key part of those watches.
In 1986, Citizen passed its biggest Japanese rival, Seiko, and became the largest watchmaker in the world.
Besides watches, the company also made printers, disk drives, color LCD televisions, and other electronics.
In 2007, Citizen reorganized all its businesses into one group called Citizen Holdings Co., Ltd.