they date from about 67-70ish and are really nice pieces. i had one in 18kt with an 18kt bracelet. too blingy for me so i let it go. in retrospect i should have kept the watch and let the bracelet go as they look really good on brown or black leather.
the reason i say it was one of the last good omegas is because it wasnt long after that, around 74 i believe, that they started using ETA calibres and the quality went downhill. the exception to the rule would be the chrono's using Lemania calibres which were always very good.
having been left a grandfather clock (although my father is still with us and going strong) i understand that being left something is far more valuable than buying it. i could never let the clock go for the same reason that you will probably be passing this watch down to one of your children. i will be the first of our family to start the tradition.
enjoy it
Graham