Hamilton Khaki Field Titanium Automatic H70665533 100M Men's Watch Hamilton has provided thousands of watches for the military and field professionals for over 100 years. Todayâs Hamilton watches embody all that experience in this field watch built for the modern, urban life. Itâs a combination of functionality and military style built in lightweight Titanium, making it ready for action any moment you demand. The bright colored indexes offer an enhanced visibility.