Vintage omega sea master a bett gift than new ... Thoughts please

Hi there ... I am brand new to this... My husband is about to turn 40 and has expressed a wish for an omega sea master. Do you think I should be looking at new ( expensive but lovely) or looking for a vintage 1972 version as this is the year of his birth. What are the implications of this?? Is it a good year for sea masters?? Totally out of my depth and I really want to make it a special much loved gift. Thought s / afvice hugely appreciated x jules