I was going to suggest going to the omega vintage database (Google to get the URL) but I've just tried it on my phone and it's rubbish. You used to be able to search by case number for example. Maybe you'd have more luck on a non-mobile browser
May be you will be more lucky if you google search by the quartz movement 1437 as written on the case back.
check ebay...one sold for $41 while another with the bracelet and in mint condition sold for $278. My guess, $100-$150, for that special someone who is really jonesing for tutone quartz day-date for a 1980's theme party.