1969 Grey Dial Omega Constellation, Is It Authentic/Frankenwatch?

Hey! This is my first Omega watch I have acquired and I am new to this forum. The watch I have is a reference 168.027 Omega Constellation Grey Dial with a White Gold Bezel from 1969. I love the look of this watch and have worn it almost every day since owning it for about 2 weeks. I was curious to think what everyone on here would think of the watch and if it is authentic or a Frankenwatch. Also, the watch had run very well and kept great time until the date change between the 11th and 12th of the month and then between the 12th and 13th when it decided to just stop working at around 9:00pm on both days while running well on my wrist for the whole day beforehand. I decided to adjust the time to feel the date change and it would work well except for between around 10:30 pm and 3 am between a few dates. Wondering what may have caused this discrepancy and also just wanting to get general feedback on the watch and it’s authenticity. I will include pictures of the watch below and it’s original brick bracelet (as it is currently on a very nice hodinkee leather strap). Thank you!

A beautiful variation ! 👍

Thank you all for the compliments 😀 The dial is what made me pull the trigger and I couldn’t be happier for a first omega

Any recommendations on getting service? Direct from Omega or a local specialist or is there another option?

Well I would definitely recommend to use a watchmaker with experience in vintage watches instead of sending to Omega.

And welcome to the forum @Sam_C . Great looking watch

Oh she is a looker ain't she! Love them C jobbies on their bracelets 👍

Find a local watchmaker who knows this reference and who can get parts.

It's a lovely watch, very attractive and in good cosmetic condition. Wear it with pride.

Truly exceptional condition on that dial , what time machine did you take to buy it 😲!

Welcome, Sam! This very watch was reviewed on OF a couple of years ago: it was well received then, and it's just as super now. (Although, if you do feel there are some issues, I will very happily take it away for you 😉). I hope it gives you a lot of enjoyment!

Thank you all for the warm welcome and compliments and I’ll be sure to let ya know if I consider passing it on😉.