Great day out on the water. Only deployed the jib, but was a great little sail. Made the Seamaster earn some of its namesake. My pop is sporting my Tag Aquaracer 500m chrono. Good food. Great wine. Fun watches. Amazing people. Perfect day.
And a new friend pulled this out of his drawer on his Tollycraff. I know nothing about it. Nice piece though
My guess would be late 1950s or early 1960s, when Heuer (pre TAG) were primarily tool watches for sports, science, and industry. Nothing fancy, pure utility. Boy how the TAG Heuer of today has changed!