Side by side

Hamilton Khaki Aviation Day Date AutovsHamilton Khaki Aviation Pilot Pioneer Mechanical 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 Pilot Pioneer Mechanical Chrono

Owners and reviewers widely praise the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono for its authentic military design, attractive dial execution, and intriguing asymmetrical case, with many appreciating its utilitarian feel and vintage vibe. The hand-wound H-51-Si movement, offering a 60-hour power reserve and accuracy around +5 to +7 seconds per day, is also noted positively, as is the satisfying feel of manual winding. Some owners find the 36mm case size light and versatile, while others note it wears larger than its dimensions suggest. However, several sources point to the mineral crystal as a drawback compared to sapphire, and the lume is generally described as weak. The included strap is frequently criticized for being too long and uncomfortable, with many preferring it on a NATO strap. On balance, owners and reviewers rate the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono highly for its compelling vintage military aesthetic and solid value proposition.

From video reviewers

The vintage-inspired design referencing a 1970s RAF model is a shared strength. Reviewers did not reach a consensus on any weaknesses or specific points of disagreement.

At a glance

9 of 29 specs differ
Diameter
Khaki Aviation Day Date Auto42mm
Khaki Aviation Pilot Pioneer Mechanical Chrono40mm
Power Reserve
Khaki Aviation Day Date Auto80h
Khaki Aviation Pilot Pioneer Mechanical Chrono60h
Water Resistance
Khaki Aviation Day Date Auto100m
Khaki Aviation Pilot Pioneer Mechanical Chrono100m
MSRP
Khaki Aviation Day Date Auto$1,125
Khaki Aviation Pilot Pioneer Mechanical Chrono$2,445

Full specifications

Case

4 specs
Diameter
42mm
40mm
Thickness
12.15mm
14.35mm
Lug-to-Lug
0mm
50mm
Lug Width
20mm
22mm

Crystal & Dial

1 specs
Dial Color
Black
Blue

Movement

3 specs
Caliber
H-40 (ETA 2834-2 base)
H-51-Si
Type
Automatic
Manual
Power Reserve
80h
60h

Pricing

1 specs
MSRP
$1,125
$2,445
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