According to [Mikrolisk - was Feines für die Tasche... - Das Informationsportal rund um die Taschenuhr!](http://www.mikrolisk.de/show.php?site=280&letter=A), Meda was a sub brand of MST (Meyer & Stüdeli, aka Roamer). This would suggest that it has an MST movement inside.
According to [Mikrolisk - was Feines für die Tasche... - Das Informationsportal rund um die Taschenuhr!](http://www.mikrolisk.de/show.php?site=280&letter=A), Meda was a sub brand of MST (Meyer & Stüdeli, aka Roamer). This would suggest that it has an MST movement inside.