
The Hamilton Khaki Aviation Day Date Auto (ref. h64645131) is an automatic pilot watch, with a 42mm stainless steel case, 12.15mm thick, powered by the H-40 movement and a 80-hour power reserve. Water resistance is rated to 100m, under a sapphire crystal. Manufacturer MSRP is $1,125.
Owners and reviewers widely praise the Hamilton Khaki Aviation Day Date Auto for its handsome, legible dial with raised indices and day/date complications, and its versatile, modern pilot watch design. The fully brushed case and good lume are noted strengths, with one owner finding it wears comfortably on a NATO strap. The H-10 caliber offers an 80-hour power reserve, though its decoration and regulation are less refined. Some find the 42mm size large and the skeletonized hour hand tip visually unappealing, while others note the AR coating is decent but not exceptional. Overall, owners and reviewers rate the Hamilton Khaki Aviation Day Date Auto highly for its practical design and value at its price point.