Category Archives: Watches

Eterna are a brand with a long and distinguished history. Their movement manufacturing division become one of the founding companies of ETA but their greatest contribution to the development of watchmaking was the introduction of ball-bearings to the automatic winding rotor of their watches, reducing friction dramatically which, in turn, improved the accuracy and longevity. This was such an important achievement that the five ball-bearings became the emblem of the brand. Continue reading →