Swiss watches as a whole would cover a lot in one thread so lets have a look at your Speedmasters.
1968 'transitional' cal 861
Wrist shot on it's original 1039 bracelet
With older sister cal 321 105-012-65 and a couple of other bracelet options; 1171 (undated) and No. 12 (?) (unmarked)
Whatchyagot?
Ian
1968 'transitional' cal 861

Wrist shot on it's original 1039 bracelet

With older sister cal 321 105-012-65 and a couple of other bracelet options; 1171 (undated) and No. 12 (?) (unmarked)

Whatchyagot?
Ian