Lancaster
·Good day. Im new to this forum and have a watch that Im struggling to date. The Reference on the case back is 7176D its got the Lemania 5100 Movement (signed LEMANIA WATCH LTD) its got an Orfina signed inside case back and the Orfina logo on the clasp. Also the airplane hand in orange. I had originally thought it was 1970s but the serial number (I've blocked some of it out) looks very high. 2031****
Were they making these in the 1990s too?
any help gratefully apreciated
thank you