Side by side

Hamilton Khaki Aviation Day Date AutovsHamilton Khaki Aviation Converter Auto Chrono

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Hamilton Khaki Aviation Day Date Auto

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.

Hamilton Khaki Aviation Converter Auto Chrono

The Hamilton Khaki Aviation Converter Auto Chrono is widely described as a large 44mm pilot's watch with a functional slide rule bezel. Reviewers note its well-finished steel case, featuring a robust satin-brushed finish with polished accents and chamfers, and a legible blue sunray dial with applied Super-LumiNova markers and old-fashioned hands. It is powered by the H-21-Si automatic chronograph movement, an upgraded ETA-based caliber with a silicon balance spring for anti-magnetic properties, offering a 60-hour power reserve. The watch is rated to 100m water resistance and features a bi-directional slide rule bezel with graduations printed under K1 mineral glass for scratch protection, which is easy to manipulate due to its deeply notched steel design. Some find the slide rule bezel complicated to use without a manual. One owner notes its character does not appeal as much as other slide bezel chronos.

At a glance

6 of 29 specs differ
Diameter
Khaki Aviation Day Date Auto42mm
Khaki Aviation Converter Auto Chrono44mm
Power Reserve
Khaki Aviation Day Date Auto80h
Khaki Aviation Converter Auto Chrono60h
Water Resistance
Khaki Aviation Day Date Auto100m
Khaki Aviation Converter Auto Chrono100m
MSRP
Khaki Aviation Day Date Auto$1,125
Khaki Aviation Converter Auto Chrono$2,445

Full specifications

Case

3 specs
Diameter
42mm
44mm
Thickness
12.15mm
14.6mm
Lug Width
20mm
22mm

Movement

2 specs
Caliber
H-40 (ETA 2834-2 base)
H-21-Si
Power Reserve
80h
60h

Pricing

1 specs
MSRP
$1,125
$2,445
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