Identify Hamilton wristwatch

Hi all,
New to this community, so please be forgiving with my request. I’ve searched online some but I haven’t been able to find any resources (wayback machine included!) to find out more on my recently acquired wristwatch.

I’m looking for more info on this watch (pictures below):

  1. Vintage (year/decade?), model.
  2. Movement (please note I haven’t been yet able to gain access to it – I think this needs to be opened through the top by removing the crystal and crown, so not a job…

Identify Hamilton wristwatch

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