Need help with authenticity of this seamaster

I'm considering bidding for this on eBay. It ticks all the boxes I've been looking for in a vintage seamaster. Some cursory digging on the serial and caseback numbers, and on the movement, seems to all look OK. But I'm not an expert and would like to know if your keen eyes spot anything that looks non-genuine or potentially defective from the photos. I'm sure it would need a service/cleaning from my local watchmaker but hopefully nothing is too wrong with it. All the seller says is that "it runs."

To be honest the relatively low starting bid and the good condition of the dial make me a bit suspicious. But I can't spot any obvious tells of a fake.







Here is the link including more photos...
https://www.ebay.com/itm/115919134863

For my eye i do not spot anything non-genuine. I am not an expert on the dial if was "celaned" or not..looking forward for the experts opinions but also the price do not a very low starting bid and even if was starting for a dollar the price could go up in the last few seconds..

Dial is fine, except when ridiculously over magnified. Appears to have been sold at $450, reasonable since it likely needs servicing.