Side by side

Hamilton Khaki Aviation X-Wind Auto chronovsSpinnaker Dumas GMT

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

Khaki Aviation X-Wind Auto chrono
HamiltonKhaki Aviation X-Wind Auto chrono
MSRP $2,095
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

8 of 29 specs differ
Diameter
Khaki Aviation X-Wind Auto chrono44mm
Dumas GMT44mm
Power Reserve
Khaki Aviation X-Wind Auto chrono60h
Dumas GMT40h
Water Resistance
Khaki Aviation X-Wind Auto chrono100m
Dumas GMT300m
MSRP
Khaki Aviation X-Wind Auto chrono$2,095
Dumas GMT$399

Full specifications

Case

5 specs
Category
Pilot
GMT
Thickness
15.6mm
15mm
Lug-to-Lug
46mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Movement

2 specs
Caliber
H-21
Seiko NH34A
Power Reserve
60h
40h

Pricing

1 specs
MSRP
$2,095
$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 X-Wind Auto chrono

Owners widely praise the Hamilton Khaki Aviation X-Wind Auto chrono for its good quality for the price and versatility with straps. Reviewers highlight its unique drift angle calculator function as a horological curio and legitimate navigational tool, noting its modified Valjoux 7750 movement provides a 60-hour power reserve. Some owners find the busy dial and left-handed crown/pusher setup unusual, and its lume could be stronger, while others consider it a heavy travel watch with features not useful for everyday use. On balance, owners and reviewers rate the Hamilton Khaki Aviation X-Wind Auto chrono highly for its functionality and build quality at its price point.

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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