Chronograph 1 - All Titanium Numbered Edition | 40mm Mens WatchMade entirely of titanium. And steeped in history. In 1975, Professor Ferdinand Alexander Porsche succeeded in reinterpreting the high contrast look of the Chronograph I with a Black dial and uncoated stainless steel. The matt surface reduced reflections just as reliably as the All Black original while at the same time giving the timepiece its own purist fascination. The Chronograph 1 All Titanium Numbered Edition resolutely brings this design into