IWC open men's pocket watch silver 900, works number 884927 (circa 1920 approx. 2400 pcs.) Kal 73., with screwed minute radochaton, pallet lever escapement and gooseneck fine adjustment, clockwork runs exactly, both lids 900 silver, reverse side engraving IM, silver plated dial with arab. Numerals and minute ring, small second, blued Breguet hands, D. 48 mm, h. 11 mm, with silver pocket watch chain Shell pattern, tot. weight 76.6 g