I came across this listing too, but I was put off by the low resolution pictures, and the dial didn't look very good from what I could see.
I've recently gotten the Dynamic bug too and have purchased 3 in the past year. To me, the dial and then the case condition are what motivated me to buy. The charcoal and white ones I found closer to $800 and the blue was $500. I know I overpaid to some degree, but I've looked at so many poor examples under $500 that I spent a little more to get the condition I wanted. I'd like to eventually get the white and blue bullseye dial, but haven't really seen many in good condition.
I personally like the straps better than the steel bracelet, though they can be a little expensive to replace.
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