I am in line with views of
@MarktheTime. I absolutely love this version of the Polerouter Sub and to my eyes it is the most interesting and striking of the three versions. Plus, it is the most rare. It also wears incredibly comfortable at least on my wrist, especially with the original GF bracelet.
Regarding this example, it does look all correct. The GF bracelet is a big plus. While the hands have issues, correct hands do appear on the Bay and a set may be available right now for a reasonable price. Better hands will spruce it up.
I have been following this model closely for years and own two (all-original), green and red (and a Mk !), and just happen to be wearing the green (on original GF bracelet) today. See below.
The two aspects to check out are the Bakelite bezel and the screw-down crown. The Bakelite is prone to cracking. You will want to ensure the bezel is intact and not cracked. I cannot tell as the photos are dark. The numbers appear washed out but this may just be a result of the lighting. The screw-down crown on this model is finicky, so ensure it's functioning properly.
Given the rarity of this model, you may need to make sacrifices to land one unless you're willing to wait. It took me a couple years of searching to find the green one above. Note, however, that I first negotiated on a subpar example that did not work out, and am so glad I did not jump for that one, because I found the mint green example above only a few months later, so patience can be rewarding. The red one landed 18 months later.
I say you cannot go wrong either way: If you like it, then get it. If not, another one will appear eventually and may be nicer. Plus, the hunt is part of the fun, right?
The one on C24 has been there a while. There is also a similar black one on the Bay for less but without bracelet.
I am mainly a chronograph guy but this mere three-hand model captured me and now I own the two plus I am still seeking the other colors to complete the set. May take the rest of my life given how infrequently nice ones appear.