The 1966 Seaman II is either a one-year wonder or a two-year wonder, it's hard to say for sure.
The models is only shown in the 1966/67 catalog. There is no 1967 catalog that I'm aware of.
The Seaman II is the second model to bear the Seaman name, the earlier version being a one-year wonder from 1962, The Seaman II was an entry level model priced at $50. That's about $450 in today's currency and that's about what you'd pay for a similar entry-level model in today's Hamilton lineup.
It may be hard to tell which case I used with the strap installed but I went the non-personalized route. Personalized cases don't really bother me but if you have no connection to the original owner then non-personalized case is probably more appealing, even with slightly damaged lugs.
What are your thoughts?