I don't know enough about this model, hoping someone can enlighten as to whether this watch is legit.
I don't know enough about Snowflakes to comment on the head, but 455B endlinks can be found on many, many reps! As for the seller, he's got a few other fishy pieces on sale, starting with the vintage SM300 with "rare yellow date and bezel". Maybe I'm mistaken, but in my experience "rare yellow bezel" = Vietnam case. And if you think the dial and hands look pretty good, that's because he just bought them two weeks ago!
Yes, you said the bracelet was a rep. I pointed to a specific tell.Did you read my comment or just post? The bracelet issue was mentioned.