I like the khaki field, wear it often, and that’s a great-looking blue.
This has a 44mm case and was sold on leather; i bought a bracelet for it so I wouldn’t trash the leather from sweat in our steamy summers. Mastersintime sold the Hamilton bracelet for this watch for about $120. (This was a gift from my spouse; i steered her to a grey market site that sold it for about 40% off the retail price. It arrived spotless and has run well, so I’m glad she didn’t buy it from an authorized dealer).
You can buy the black dial version of the 42mm titanium you’re looking at on leather for about $700 on the grey market. Didn’t see the blue dial version, but I’m guessing it’s floating around for at least 20-30% less than retail.
I’m not familiar with this watch. Is it grade 2 or 5 titanium, and if it’s grade 2, do they use a hardening treatment? I wear a number of titanium watches, and if grade 2 doesn’t have some kind of surface hardening, it’s more prone to dings and marks than most steel watch cases. [grade 5 titanium is quite hard, more like steel). If a few marks on the case are OK with you, it’s a non-issue, and field watches, my opinion, look better when it’s clear they’re being worn, lived-in. If some surface wear might bother you, and Hamilton doesn’t use a hardening treatment, it’s something you may want to consider.