Side by side

Hamilton Khaki Aviation Converter AutovsLongines SPIRIT PILOT FLYBACK

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

Khaki Aviation Converter Auto
HamiltonKhaki Aviation Converter Auto
MSRP $1,345
SPIRIT PILOT FLYBACK
LonginesSPIRIT PILOT FLYBACK
MSRP $5,550

At a glance

18 of 29 specs differ
Diameter
Khaki Aviation Converter Auto42mm
SPIRIT PILOT FLYBACK39.5mm
Power Reserve
Khaki Aviation Converter Auto80h
SPIRIT PILOT FLYBACK44h
Water Resistance
Khaki Aviation Converter Auto100m
SPIRIT PILOT FLYBACK100m
MSRP
Khaki Aviation Converter Auto$1,345
SPIRIT PILOT FLYBACK$5,550

Full specifications

Case

6 specs
Diameter
42mm
39.5mm
Thickness
10.87mm
13.4mm
Lug-to-Lug
46mm
47.4mm
Material
Stainless Steel
Ceramic
Finish
Brushed and polished
Caseback
Solid
Screw-down and transparent with sapphire crystal case back

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Indices
Applied
Applied Arabic numerals
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
H-10
L792.4
Type
Automatic
Manual
Power Reserve
80h
44h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, small seconds at 9 o'clock

Pricing

1 specs
MSRP
$1,345
$5,550

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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 Converter Auto

The Hamilton Khaki Aviation Converter Auto is recognized for its classic pilot's watch aesthetic, featuring a functional bi-directional slide rule bezel with a mineral glass insert for scratch protection. Reviewers highlight its instrument-heavy design, well-balanced dial, and robust 42mm or 44mm case with a satin-brushed finish and polished accents. The watch is equipped with applied indexes and hands filled with Super-LumiNova for legibility, and a flat sapphire crystal with double anti-reflective coating. The automatic models utilize the H-10 movement, offering a 60-hour power reserve, while the chronograph version uses the H-21-Si movement. Overall, reviewers praise the Hamilton Khaki Aviation Converter Auto for its attractive, functional pilot's watch design and robust build at its price point.

Longines SPIRIT PILOT FLYBACK

The Longines Spirit Pilot Flyback is widely praised for its refined 39.5mm case size, improved wearability, and clean dial design, incorporating enthusiast feedback by removing the five stars and date. Reviewers and owners consistently highlight its exceptional finishing, well-acting ceramic bezel, and the value it offers. The manual-winding L792.4 column-wheel chronograph movement is COSC-certified and offers a power reserve of approximately 68 to 72 hours. Some owners expressed disappointment with the removal of the five stars from the dial, and one reviewer noted that some numerals are partially cut off by the subdials. The watch is priced around $5,350 to $5,550 USD. Overall, owners and reviewers rate the Longines Spirit Pilot Flyback highly for its improved dimensions, finishing, and value proposition.

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