I just received an order of three Blu Shark NATO straps. Two of the straps feature their premium style hardware.
I have to say, these are some very high quality straps. The nylon weave and construction is very good and the hardware, in particular, is stunning.
Having upgraded hardware really elevate the overall feel of the NATO, which even on a quality NATO can feel cheap compared to leather or a bracelet.
I especially like the Vintage Bond on my Seamaster.
I should also mention that their customer service is top notch. I made a mistake with my order and they responded promptly and facilitated an quick and easy exchange.
Here are some photos: