the only dumb questions on this forum are the ones you didn’t ask.
definitely authentic - and I’m fairly sure the dial is fine (these particular Connies have a slightly peculiar font all of their own)
I see, you have two crystals - which explains the cyclops in the first pic, then without in the later pics.
Mechanical watches do require servicing as the oils dry up.
your watch is definitely worth servicing - these watches were the creme de la creme of Omega watches in their day.
Serviced regularly, it will likely last another 50 years.
How long it takes and how much it costs depends on where you are and who you use. Allow roughly 200-300 (£/€/$) as a cost for a service (But for your watch I would allow an extra ~100 to replace the crown and crystal)
if you let us know where you are (country will do) you may get some recommendations for a watchmaker.
Hope that helps.
ps if you’d posted this thread in the ‘vintage Omega’ section you may have received more comments.
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