Help Considering Bumper

The dial has been repainted and the minute hand seems too long. I have a similar one with automatic movement here:

A repainted dial will generally look good superficially to someone without experience. But when you have seen many original dials, this dial immediately jumps out as being sloppy and unattractive, and it has zero collectible value, because collectors appreciate originality, and a repainted dial is a total dealbreaker. The printing is sloppy and the misalignment is extreme. When I looked at the misalignment between the 12 and the Omega symbol and between the minute track and the applied 11 o'clock marker, I could hardly believe my eyes. How can you miss that?

That said, if you don't care about having a watch that appeals to collectors and just want something that looks good to your eye, then go ahead and buy it. But it would not be a "good purchase" in terms of value, and it would be difficult to sell if you ever tire of it. 650 GBP is obviously not a lot of money in absolute terms and maybe it's just pocket change to you, but you would be upside-down on the watch immediately, and even more so after paying for a movement service.

650 GBP Is WAAAY too much for that with that dial. A user came here with a similar watch about a month ago (https://www.ebay.com/itm/187811137786) in admittedly somewhat worse condition due to the case inscription (and imperfect performance), and I ended up overpaying on Ebay for it for $310. I got a feeling a more sane person would have only paid about $275.

Charging more than ~$350US for THAT watch should, IMO, be a crime of fraud. PAYING more than ~$300 US for that should be considered stupidity.