Automatic watches have a small rotating weight inside the movement which spins If water enters the mechanism of your vintage timepiece, pull out the crown as Within a few years, Eterna received a Swiss patent for an alarm wristwatch.
In , Eterna advanced self-winding watch technology with the development of the Eterna-matic automatic movement. The use of five.
was the year of a fundamental invention not only for Eterna but for the entire watchmaking industry: the Eterna-matic movement. From now on, all the.