Hi
@Cookhamdean
Welcome to the forum. Delightful to see another vintage enthusiast.
I am not an expert( click on the avatars to see the profile and give weightage to opinions accordingly).
I feel the dial looks all authentic and in good condition. The dogleg case too has maintained its contours well. Though not the sharpest I have seen in the forum it being a soft solid gold case it’s in great condition. It has its fair bit of light scratches so not recently polished and very well may never have been.
I like the onyx insert indices, beats the black paint.
The date window being there is not generally appreciated by collectors, though personally I don’t mind it, and may help bring the cost down a bit.
Bracelet looks omega this needs to be confirmed. If omega it should be solid gold.
As for the price, I think the watch head is worth around 2.5 - 3k usd. The bracelet if solid gold will be according to gold weight{ slightly above if omega(maybe 200usd)}. If not solid gold or omega it’s not worth anything. My guesstimate will be 2k for the bracelet( gold,omega)
The watch originally came in a strap. Original buyer may have chosen the bracelet from the boutique omega catalog at time of purchase.
Crown is correct which is nice
My estimation for the whole watch will be around 5k.