IWC Porsche Design Sportivo Titanium IW3743 Mens Watch. 36MM Titanium case. Black dial with luminous hands and indexes. Three sub-dials displaying a small second, 60 minute and 24 hours. tachymeter outer dial. Brown leather strap with titanium push button fold over clasp. Will fit up to an 8-inch wrist Quarze battery movement. Circa 1990s.This watch is backed by our two year warranty.