You have definitely found the right community, but ensure you also do plenty of your own research before pulling the trigger. On anything! What stands out to you as perhaps being suspect on this watch?
The photos aren't the best, and there isn't a dead on shot of the caseback/movement, but it looks legit to me. There are others here who may provide more critical assessment. Assuming there is a warranty card provided, did you check the warranty card against the watches serial number? From Omega's website:
Authentic OMEGA timepieces are supplied with a warranty card, duly completed with an 8-digit numeric or a 7-digit alphanumeric serial number, the watch reference, the purchase date and the retailer's full name and address.
Here's a listing of a similar watch for sale in Vancouver, BC.
How much is the seller asking?
I have the teak dial - mine is an 8900 movement (AT 41) from 2023.
