ESA Swissonic 10 Electronic

A very interesting and rare Swissonic 10 Electronic watch produced by ESA (Ebauches SA) to showcase their Dynotron caliber 9158.

This example has been manually numbered which can indicate a pre-production / prototype watch.

Two-parts stainless steel case

Beautiful blue sunburst dial

Day and Date

Silver applied indexes

Silver and red hands

It is fitted with a vintage Swiss made rubber strap

The case measures 37mm without crown, 43mm lug to lug, 13mm thick with a 18mm lug width.

It is powered by an electro-mechanical caliber ESA Dynotron 9158. It runs well and keeps good time.