You've done great research, and it's clear you know what you want. My advice is to keep looking a bit more so that you get a better feel for prices and a better eye for polishing.
When you look at watches from that type of dealer, they are always a bit pimped up and polished. The two watches you've shown aren't badly over-polished, but they are more polished than I would prefer, especially given the price. They are both entry-level Seamasters: 33.5mm or 34mm, with manual-winding 600-series movements. Don't get me wrong, they are good watches, but shouldn't command the same price as a 35-36mm watch with cal 55x or 56x automatic movements. I often see decent manual-winding cal 600/601/610 Omegas in 34mm SS cases for 500 GBP or less.
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