I if you picked this watch out you probably like it and it's automatic over the plethora of Quartz for that time period. The eighties were a bit of a low point for Omega. I doubt your watch was made in the volume compared to the current Aqua terra line.
All that matters is that you like the watch and it keeps good time. I will warn you now not to browse any watches on this forum or ask for advice on buying another. You will end up with no money in your pocket and walking to work with a packed lunch of jam (jello) sandwiches. This place is full of enablers and very pretty watches.
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