hallmarked, marked Schaff hausen, Switzerland, massive pocket watch, gold, purity 585, base metal, case signed by International Watch Co. Schaff hausen, number 987998, gilded dial, signed, machine running, labeled IWC, micro regulation, screwed shawls, diameter 53 mm, width 13 mm, total weight 105 g, period casket, marked by Jan Spáčil in Samotiškách