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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FS: Swiss Made SEAHOLM Offshore Diver, Sellita SW200-1, Drop Tested ISO 1413 x3, ISO 764 x7 Antimagnetic 33,500 A/m or 420 Gauss, ISO 6425 250M WR!

FS: Swiss Made SEAHOLM Offshore Diver, Sellita SW200-1, Drop Tested ISO 1413 x3, ISO 764 x7 Antimagnetic 33,500 A/m or 420 Gauss, ISO 6425 250M WR!

This is the ultimate go anywhere do anything Swiss Made Diver! Seaholm is an American watch company, co…

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Glad to join here and share my The CITIZEN AQ4091-56M.

I’m from China. It was difficult for me to join this forum. Because we can’t visit Google.com and thus I can’t pass the reCAPTCHA verification.
Recently, I’ve been choosing a HAQ watch.Because I’m tired of the errors of mechanical watches.
I’ve learned a lot of knowledge about HAQ from this forum, such as the principles of the movement, the mechanism of thermal compensation, etc. I’ve also seen many sharing posts from friends.
In return, I will also share my watch to everyone.

I bought…

Glad to join here and share my The CITIZEN AQ4091-56M.

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