I saw this listing on Carousell in Singapore. https://carousell.com/p/52114485 I don't know much about Omega boxes from that period other than the lovely moonrock / crater box for post-moon speedies but thought that if there is any truth to this being a genuine Omega box for 321's, there might be some interested punters here
I didn't see a photo of this exact box in MWO, but there is something very close dated to the 1970's ...where the outside looks identical but the inside is red velvet.
That's a standard issue Omega box. Could have been used for almost any Omega. Not sure it's worth a huge premium because it "may" have housed a Speedmaster. Hope this helps, gatorcpa
I understood the boxes for a Speedy were slightly larger (deeper?) than the standard red box from a similar aged Seamaster etc etc...
Saw several of those boxes on e-Bay over the weekend. Pretty common for the time period. The e-Bay ones were less than half of your sellers pricing.
That is a $100 box, incidentally these boxes were used on speedies but not until the mid late 1970's and most of the Speedmaster versions I've seen had inserts which said Speedmaster on them