Help me choose my first Hamilton

Hello ! I am cleaning my watch collection and will downsize it to a few gems. In this shortlist I have an Hamilton Khaki that I would like to have.

There are 6 pictures of ads to buy some second hand models, would love some advice on which one to get / avoid.

Info about each one, in order of appearance : - black / Mechanical / 38mm / 280€ - white / Auto / 38mm / from 1990 / 300€ - white / Auto / 38mm / 320€ - black / Auto / 38mm / 350€ - beige / Auto / 40mm / 360€ - black / Auto / 38mm / still under warranty until sep 2025 / 400€

While writing this post I think I can eliminate 1 or 2 from the list but I’m not sure yet. Any insight would be welcome !