Today this little watch arrived. Its by Dila, which was a brand of Frey & Co.
I can't see any markings under the balance, so if anyone knows the movement I'd be grateful.
Its possible that it is a Frey movement. If so, I can't find anything online.
It's approximately 7''' x 11.5'''.
It has a Swiss patent number 220529. Its running well.
The plating's a little worn at the front; a lot worn at the back. The crystal's in very good order.
It cost me £3.20.