I know these Ploprofs are a love or hate watch; and I love them. The Ploprof 1200 is from the year 2010 and the Ploprof 600 was delivered in 1972. The Ploprof 600 does show its age, and that is one of the things I really like about this watch. The Ploprof 1200 is one I find myself wearing most often, normally taking it off on Tuesdays to wear the Gemini4 or Ed White. Share the pair in your collection with the greatest age difference. In my case, these are 38 years apart.
A pair of Airman with a 58 year spread: Original 1954 AM/PM Airman 1 Limited Edition re-issue 2012 AM/PM Airman 1