Surprise birthday gift

[bobyboy]

Hi guys,

This watch just passed down to me from my uncle as a birthday gift. I know it is one of the 17000 Oysterquartz series, it says 17013A on the back of the lugs and on the back of the bracelet 17013. Can you please help me identify the year of production because from what I have read about this model, production started at 1977 and the serial number for this year started at 5 million. Mine says 449XXXX on the back of the lugs which date the watch in 1975 and inside the caseback says again 449....& EX64.....

I really appreciate any help you can provide...