Side by side

Hamilton Khaki Aviation Takeoff Auto ChronovsSpinnaker Dumas GMT

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

Khaki Aviation Takeoff Auto Chrono
HamiltonKhaki Aviation Takeoff Auto Chrono
MSRP $3,575
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

10 of 29 specs differ
Diameter
Khaki Aviation Takeoff Auto Chrono46mm
Dumas GMT44mm
Power Reserve
Khaki Aviation Takeoff Auto Chrono60h
Dumas GMT40h
Water Resistance
Khaki Aviation Takeoff Auto Chrono50m
Dumas GMT300m
MSRP
Khaki Aviation Takeoff Auto Chrono$3,575
Dumas GMT$399

Full specifications

Case

6 specs
Category
Pilot
GMT
Diameter
46mm
44mm
Thickness
16.2mm
15mm
Lug-to-Lug
46mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
300m

Crystal & Dial

1 specs
Dial Color
Black
Blue

Movement

2 specs
Caliber
H-31
Seiko NH34A
Power Reserve
60h
40h

Pricing

1 specs
MSRP
$3,575
$399

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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 Takeoff Auto Chrono

The Hamilton Khaki Aviation Takeoff Auto Chrono is noted for its unique bullhead chronograph design and detachable functionality for desktop display, with a PVD case and yellow accents. Owners praise its solid construction, precise indices, and smooth bezel action, alongside a detailed champagne dial, crisp printing, and retro hands with good lume. However, its extreme thickness and 46.3mm width are flagged as compromising daily wearability, and some find the sizable crown guards hinder usability, while a rattling bracelet with a difficult-to-remove design is also mentioned. The watch uses the Hamilton H-31 automatic chronograph movement with a 60-hour power reserve and is a limited edition of 1999 units. On balance, owners and reviewers appreciate the Hamilton Khaki Aviation Takeoff Auto Chrono for its distinctive design and pilot-inspired legibility, despite practical concerns regarding its size and wearability.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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