Something cool I got for my Heuer Bund

Since vintage collecting got expensive. I figure I can add stuff for their history like this Heuer Bund was used for navigation a working watch. Saw this Bund navigation kit dam the price was great been looking at it for a while at the MWR PX still don't know why no one got it before I did, I was slow about it. To me this navigation kit sort of part of the history of this watch. I think a cool thing. Remember no GPS in the 1970's they did it the old fashion way.

Cool!

Very spiffy