Pink gold 750. Extraordinarily large case no. 873495/1337. Silvered dial with hour numerals and hands in pink gold, blue tachymeter scale and minute sub-dial, small second at 9h. High-grade manually-wound movement with polished chronograph under-dial work and polished edges, cal. 20. Screw balance wheel with Breguet hairspring. Leather band with tang buckle. D 38 mm.