Hi everyone, I’m thinking about buying a 70’s Omega TV dial watch, it belongs to a coworker, he bought it about 10 yrs ago in a pawn shop, he never serviced it, the watch loses minutes a Day. Please see pictures below, it has an Omega day/date caliber 1020, I would like to ask for your help on determining if the watch is authentic, if everything is correct, dial, hands, etc. Maybe also if you can help me determine the year, my coworker says he was told it was from 1973. The crown is very worn out, you can’t hardly make the omega logo anymore. Any and All help will be appreciated. Thanks in advance.