An Art Deco diamond cocktail watch, by International Watch Co., 1930s, the circular dial with baton hour markers, within a single-cut diamond bezel, to the baguette and single-cut diamond lugs of geometric design, on a double black cord strap, with deployant clasp, backwind movement, dial signed International Watch Co., diamonds approximately 1 0 carat total, mounted in platinum. Length 16.5 cm