The only one that you can see clearly under the balance is Pauls and that is no ETA, 100% seagull, not that that is is bad movement but it is not what they are advertising, i would ask them to prove that it is an ETA and i doupt they can or make you a better price, you know "little white lies" spring to mind, as a seagull it could command the price of a 2836/24 or a touch less, especialy when you compare the prices of the movements at cousins. I now see these movement watches as a good alternative to ETA as they will be available in numbers for the forseable future and take ETA hand sizes.
Edit my Aqua Terra with an ST 18 still runns faultlessly after over 2 years and lots of abuse