Eterna was founded in Grenchen, Switzerland in 1856 by Josef Girard and Urs Schild. In the 1900s, the company started to produce lady’s wristwatches adapted from small pocket watches and in 1908 it patented the first alarm wristwatch. In 1932, Eterna set up a subsidiary company, ETA, to make movements for itself and other Swiss watch companies. Its corporate logo, the five ball bearings, was adopted in 1948 and was inspired by the Eterna-matic automatic movement. The famous movement had five ball bearings strategically placed, that increased the watch’s accuracy and its useful life. Although the company was sold several times, it remains active in wristwatch design with great success.