There was another company with the tabs the other direction.
I remember my Father putting them on his Timex with a pair of pliers.
I remember the same thing.
I think they came in packages of 12 to cover the entire year.
how did you get my father's perpetual calendar????
All my father asked for at Christmas (and cheap enough that a kid's allowance could afford them).
Oh yes, I remember these metal calendar.
They were quite useful before the days of Palm PDAs and Apple Newtons.
Never knew about these…
Way before my time, I’m trying to imagine changing those every month… thanks for sharing this!
Interesting.
Where did one buy that? Was is sold as a 12 month set or month by month?
Just realized, but the last Moon Mission was Apollo 17 lasting December 7 thru 19, 1972!!
This is a perfect calendar for that watch!!