Yeah this is a 1975 DJ, it should have the quick-date function (wind hours between 10-2 and back etc) but I don't bother as it's never been serviced and when my father gave it to me the crown was loose... Rolex elves fixed the crown issue for free when I sent it in for a service quote...
I think if you pull the crown out to the first notch you can quickly adjust the date.