Hallmark AK - Gold Antique Watch Casing

by Benjamin
(Nashville, TN USA)

Hello, I have a ladies dress watch that I have been told is white gold and I am trying to identify the maker from the hallmark. I will attach a photo, though it is hard to see, and describe it as best as I can.

The mark is a wide capital "A" on top of an elongated octagon shape with the letter "K" inside. Underneath that, there is a stamp of "20 K"


The watch case is ArtDeco or Art Nouveau style - not quite as square as most Art-Deco ladies watches. The movement is Tavannes, but i'm not sure if is original to the watch casing.

Any help would be appriciated!!

THANKS!