Trends come and go but some watch designs have survived nearly unchanged for 3/4 of a century.
78 years is the Life expectancy in the United States so 75 years is pretty long time.
What watches have not changed in that amount of time? I have a mild obsession with timelessness of designs and love wearing Duffelcoats
What designs from the 1940s have lasted the test of time (har har).
catch: they have to still look somewhat modern and not some Chippendale (not the strip club) artifact.
Now (interestingly the vintage fliegers are BIGGER than modern fliegers)
Honorable mention (60 years old)