Side by side

Hamilton Khaki Navy GMT AutovsSpinnaker Dumas GMT

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

Khaki Navy GMT Auto
HamiltonKhaki Navy GMT Auto
MSRP $1,525
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

8 of 29 specs differ
Diameter
Khaki Navy GMT Auto43mm
Dumas GMT44mm
Power Reserve
Khaki Navy GMT Auto80h
Dumas GMT40h
Water Resistance
Khaki Navy GMT Auto300m
Dumas GMT300m
MSRP
Khaki Navy GMT Auto$1,525
Dumas GMT$399

Full specifications

Case

4 specs
Diameter
43mm
44mm
Thickness
13.9mm
15mm
Lug-to-Lug
46mm
48mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Silver
Blue

Movement

2 specs
Caliber
H-14
Seiko NH34A
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,525
$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 Navy GMT Auto

The Hamilton Khaki Navy GMT Auto is widely praised for its true GMT function and 80-hour power reserve, with owners noting its excellent quality for the price. Reviewers highlight its legible syringe hands and Arabic numerals, well-functioning inner bezel, and comfortable wearability due to its 12.5mm thickness and brushed case finishing. Some owners report minor cosmetic flaws like paint chips or scrapes, and accuracy figures vary, with one owner seeing -5 seconds per day and another noting +5 seconds per 24 hours. The 43mm case is 13.9mm thick, and while some find the slab-sided profile mitigates the perceived height, others note the lug-to-lug measurement can be a stumbling block. The movement is described as nicely decorated, though one owner notes a loud rotor sound, and the lack of AR coating on the sapphire crystal is a drawback for some.

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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