Boy, there are sure some generous people in the world

[Imitation of Life]

i think the watch (a wild guess, need to see the guts of the watch ofcourse) is a wee bit too small for the Landeron movement , here is mine, it's 40 or 41mm and the case is completely filled :

very nice watch you have there by the way

Thanks for the insight! I'll have to wait until I send it to my watchmaker to know what's under the hood, unfortunately...