Even in the Seamaster line there's a massive range of sizes and styles that often look nothing alike. In that price range one of the strongest choices is the Seamaster Day-Date Calibre 751 or 752, great movement, better than average for its era water resistance, nice attractive case and dial and plenty of good strap and bracelet options:
Generally speaking the 30T2s will be older and far less water resistant which is something to factor in if this will be your main watch intended to be used daily.
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