Side by side

Hamilton Khaki Aviation Pilot Pioneer Mechanical ChronovsCincinnati Watch Company P-40 A-11 Pilot

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

At a glance

16 of 29 specs differ
Diameter
Khaki Aviation Pilot Pioneer Mechanical Chrono40mm
P-40 A-11 Pilot38mm
Power Reserve
Khaki Aviation Pilot Pioneer Mechanical Chrono60h
P-40 A-11 Pilot65h
Water Resistance
Khaki Aviation Pilot Pioneer Mechanical Chrono100m
P-40 A-11 Pilot100m
MSRP
Khaki Aviation Pilot Pioneer Mechanical Chrono$2,445
P-40 A-11 Pilot$695

Full specifications

Case

7 specs
Diameter
40mm
38mm
Thickness
14.35mm
10.8mm
Lug-to-Lug
50mm
46.5mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Caseback
Solid
Screw Down with Sapphire Display

Crystal & Dial

4 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Underside
Dial Color
Blue
Brown
Indices
Applied

Movement

4 specs
Caliber
H-51-Si
Sellita SW200-2 b
Type
Manual
Automatic
Power Reserve
60h
65h
Jewels
25
26

Pricing

1 specs
MSRP
$2,445
$695

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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 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.

Cincinnati Watch Company P-40 A-11 Pilot

Owners widely praise the Cincinnati Watch Company P-40 A-11 Pilot for its great size, comfortable bracelet, phenomenal timekeeping, simple design, and great craftsmanship. One owner notes the finishing is sharp. Some users wish for a smaller size, and one owner points out the quick-release spring bars can dig in while the bracelet lacks micro-adjustments. Overall, owners rate the Cincinnati Watch Company P-40 A-11 Pilot highly for its great size and phenomenal timekeeping.

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