This is a vintage Swiss open face pocket watch made by Longines. Rendered in fine 18K gold, this slim Art Deco watch features a sleek dial with an inset second hand dial. The machined case back opens to reveal a dust cover and a15K movement numbered 5132155.
It is 2 3/8" long including the bow and the diameter is 1 7/8". It weighs a total of 57.1g.

Minor surface scratches to the case and crystal. The watch winds, runs, and keeps good time. As with all mechanical timepieces, this watch will require regular cleanings to maintain running condition.