u/Business-Coach7190

Hey everyone,
I recently found my father’s old Seiko 5 Automatic and I’m trying to identify the exact reference/movement family.
Here’s what I know so far:
Gold-plated Seiko 5 Automatic
Integrated bracelet
Square/TV-style case
Day-date window
Hidden 4 o’clock crown
Serial number: 63496020
Marked SGP ST on the caseback
From the serial number, I believe it was manufactured around March 1976.
The watch has heavy dial patina/corrosion from age and moisture exposure, and according to my father the inner square dial/frame came loose over time.
From my own research, it seems closest to a Seiko 5 from the 6319 family, possibly something like:
6319-5020
6319-5021
or another similar TV-case reference.
Would love to know more about it and If restoration is possible?

Hey everyone,
I recently found my father’s old Seiko 5 Automatic and I’m trying to identify the exact reference/movement family.
Here’s what I know so far:
Gold plated Seiko 5 Automatic
Integrated bracelet
Square/TV-style case
Day-date window
Hidden 4 o’clock crown
Caseback markings include:
Serial: 63496020
SGP ST
From the serial number, I believe it may be from March 1976.
The watch has heavy dial patina/corrosion from age and moisture exposure, and the inner square dial/frame apparently came loose over time according to my father.
From my research, it seems closest to a Seiko 5 from the 6319 family, possibly something like:
6319-5020
6319-5021
or a similar TV-case reference.
Would love help identifying:
exact reference number
movement family
whether the bracelet looks original
Would love to hear more information about it!
I’m attaching photos below.
This one’s special to me because it belonged to my father, so I’d rather preserve its character than over-restore it.