The Movement

Manufactured at La Chaux-de-Fonds, Switzerland, by La Joux-Perret

image : credit from The Naked Watchmaker - Daniela Marin

https://www.thenakedwatchmaker.com/la-joux-perret-g100

Power reserve : 68h

Number of jewels 24

Frequency / alternations 4 Hz / 28’000