1967 Clipper. M7 on the case, M6 on the movement. Shock resist. S/S Case. Waterproof. Automatic on the dial while Self Winding on the case back. Matches this one I believe : https://www.mybulova.com/watches/1967-clipper-5901 32mm wide case. 39mm lug to lug. 17mm between lugs. The hour markers appear to have lumin that is turning greenish. Runing strong.
I think your watch is right on the transition edge between Clipper "A" and Sea King "BW" as discussed here.
https://www.mybulova.com/watches/1966-clipper-8720
Clipper "A" was usually face marked Self Winding and backmarked Water Proof through 1967.
Post 1967 (earliest avail. ad 1969) , watch was renamed Sea King "BW" and marked Automatic and Water Resistant. Regulations for watches changed in 1968 and "waterproof" was replaced with "water resistant". The line between "self winding" and "automatic" is a little foggy, but seems to be in the same time frame.
I'm just splitting hairs here; I'll agree as a 1967, it's a
Clipper "A".