mac_omega
1375
The dial should be solid gold
The dial in the presented watch is most likely made of solid gold.
I have one in rose gold - will show it in a separate thread about these dials
You stated: "Note the original hexagonal crown. All original SM XVI were issued with this unique crown; I don't believe any other Omega variant utilizes it"
No, there is another one... This crown was also used on ref. OT 2984 which case looked very similar but with a different SM caseback and of course the dial.
Those I have seen had a cal. 500 inside and not a 471.
Ref 2984 is mostly encountered with steel cases, gold versions are rare.