AS 984? Not that it makes a big difference, but I think it is as AS 1123 as shown in the Ranfft image. There are some cosmetic differences between the subject watch and the one in the Ranfft image, but the differences between the layout of the bridge over the train wheels on the 1123 and the 984 are notable. Probably many of the parts would be interchangeable. Same mainspring, yoke cover, and balance staff, but different stem.
View attachment 850935
AS 1123
View attachment 850943
AS 984
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