It is a 1965 Seikomatic Chronometer 6245-9000.
I have purchased an original 1963 Omega Constellation Jumbo (37mm) from the same seller and it was a legitimate all original watch (minus the strap).
My question is quite simple: Does anyone see any issues with authenticity? redial?
(Sorry for the low quality images, I got them off the seller's WeChat page.)
UPDATE: HIGH RES PHOTOS IN THE SECOND POST!
Thanks in advance,