I only have some basic info about Dugena. They were part of the Swiss-German Alpina group in the early 1900's and made watches for Alpina during WW2. They got thru the 'quartz' revolution of the early 70's by paying homage to (read as copying) Tag Heuer watch designs and updating their looks to keep in lock-step with Heuer's designs. I have read that they were referred to as a "poor man's Heuer". All that said, decent watch for a decent price.