Omega Speedmaster 105.012-63 advice

Hello,

I have this Omega Speedmaster 105.012-63 cal 321

Can you tell what parts might not be original?

Can you advice me on a realistic selling price?

Thanks

No and No. Not with these pictures. And, just to let you know: This is a Collectors site. You do your research and come back with your findings. And : This here is not a free valuation site. Check the usual selling platforms . In the end , the Market decides. Or you could reset your post and start again: " My name is : .... I'm in ..... ( insert country here ). I have this watch and I have researched high and low and here are my findings about the Speedy, I want to sell : .... I'd like your help and your valuable time to get the maximum Sale Price. " Resume with some pleasantries.....

😗
a basic start: https://www.ilovemyspeedmaster.com/productiondateprediction/

Thanks Phil, prodcution estimate is July 1964

The chrono hand is definitively wrong, probably the crown is also a later version.
Pusher seem to be ok.
Better picture certainly would help!

To be 100% sure I would request an abstract from the archive...

Cheers