Case: Tank with flared lugs measuring 26 mm across (28 mm including the crown) and 40 mm lug to lug. The crown is at the 3 o’clock position. The back case cover is marked Stainless Steel and the inside of the cover is marked Cased and Timed in U.S.A. By the Gruen Watch Co., 10K Gold Filled Bezel, 415-836, K247348.
Dial: Quad sectors (silver and gold) Gruen and VeriThin. The hour and minute hands are gold and there is a 60 seconds sub-dial with a gold sweeping seconds hand.
Movement: Marked Gruen Watch Co., 17 Seventeen Jewels, 415, GXC, Unadjusted and Swiss.
Strap: 18 mm Black Leather Band - gold toned buckle.
Comments: An excellent example of a 1950s fancy tank wristwatch.