IWC, Porsche Design, Ref. 3430. Fine, titanium quartz wristwatch with moonphase, calendar and original deployant clasp. Made circa 1980 - Auction wrist and pocket watches - Cambi Casa d'Aste
Porsche Design by IWC watch Ocean 500 YG / Titanium Automatic winding Boys 34mm | eBay
IWC Porsche Wristwatches for sale | eBay
Porsche Uhr Gold Greece, SAVE 53% - eagleflair.com