Yes that's the "Mariner II" with a 1320, I'd listed it here : http://forum.tz-uk.com/showthread.php?117474-The-Omega-Seamaster-Quartz-Mariner-Saga-I-II-and-III

 

Bravo! One step closer! Many thanks...
Biz.

 

View attachment 273720

 

Photo attached of 1320

 

Loved looking through this thread - wonderful stuff!