IWC/Porsche design compass watch in titanium ref 3511 with Certificate of Authenticity paper and IWC service invoice pink This is a great looking

This is a great looking and classically styled vintage Day-Date in the classic 36mm yellow gold Oyster case

seconds and 1/10th second timer

and an original IWC booklet

is in great condition with the correct Tudor 380b endlinks

IWC/Porsche design compass watch in titanium ref 3511 with Certificate of Authenticity paper and IWC service invoice pink This is a great lookingIn 197778, Porsche Design (founded by Ferdinand Butzi Porsche) approached IWC with the idea of creating a wristwatch with a built in compass. Butzi wanted something functional, bold, and distinctly different. It was a challenging time for Swiss watchmakers the quartz crisis was sharply reducing demand for mechanical watches. IWC saw this collaboration as an opportunity to innovate and tap into new markets. The first model in the series, Ref. 3510, was