Well done Andy these ones never fail to become quickly a mainstay in one's collection.
I've had mine for about 4 years and it's one of those that get the most wrist time.
You'll soon realize how well it goes down with just about any attire and any occasion. Surely it will grow on you.
The white hour chrono hand is correct, and only the last days' specimens of the parts bin period sport an orange one (which instead is standard on the 510.50X).
The coffin bracelet also came with the Heuer-only clasp but these are as rare as hen's teeth. Mine too has the transitional TAG-Heuer clasp and it does not bother me in the least.
As Stewart says, this one and its PVD Sibling are underrated but so what - let's enjoy them, the last true Heuers to many.
Congratulations again.
Cheers
Fabrizio