Hi guys, at Antiquerose's suggestion, am posting this with a hope for ID. Know diddleysquat about watches so if I use all the wrong words, please forgive
It's 5cm in diameter and in running order.
There is nothing engraved or stamped on the works apart from a number and A/F on the wee pendulum thing.
Apart from the centre stamps, there is no fewer than 4 sets of engraving on the inside of the case. A definite 4128V, 5015V, a possible
SNTS and another one that I can't read because it just too tiny. The number 162767 on the inside of the case is repeated on the inside of the works casing.
Any ideas?