History Question…

I am in possession of a Seiko watch purported to be JR Richard's. It is a vintage Seiko 6106 DX model that AI says aligns with the historic date when Astro Bob Watson scored the 1,000,000th Run. It is engraved

1,000,000th RUN

5-4-75

ASTROS

I am interested in knowing who would know if JR Richards had this watch or if the team gave watches to the team members. I know Bob Watson got a platinum one from Seiko…this isn't it I am sure.

Just curious about authenticity.

Thank you!

Ann