Zenith Espada quartz hexagon stainless men's watch. Swiss made vintage. Water resistant. 01 1860-23 Needs a battery.. Approx 35mm across face.,measured with a ruler inside to inside of lug, meaning where the band connects to the watch is 18 mm give or take a half a millimeter. I'm not a jeweler I don't have calipers for this. The band at the lug and the widest point is about 20 mm. The watch thickness is approximately 6 mm. Original owner with box and paperwork..