Omega Seamaster 300 Big Triangle 165 024This 3rd Generation Seamaster 300 was introduced in 1964. And this dial with oversized triangle at 12 o'clock was actually developed for British Navy and revealed in 1967. The dial is called "Big Triangle" and this SM300 have some military pieces and civilian pieces like this item. [Condition] Case is great condition with slight marks and dents on both side. Back case has only slight marks and engrave remains clearly. Bezel is very great condition