Breitling ref. 3865  is early Skin Diver powered by ETA 2472 with a signed Breitling Geneve Rotor, working as a chronometre.

This watch produced in second half of 60s, it is a real classic diver watch, all stainless steel case, original glass with magnifying  on date, perfect dial and hands, bi-directional no clicks bezel.

It is interesting to mention that Marc Nicolet skin diver watch is is completely identical to this one Breitling which I present to you.