Side by side

Hamilton Khaki Navy GMT AutovsSpinnaker Dumas Automatic

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 Automatic
SpinnakerDumas Automatic
MSRP $239

At a glance

9 of 29 specs differ
Diameter
Khaki Navy GMT Auto43mm
Dumas Automatic44mm
Power Reserve
Khaki Navy GMT Auto80h
Dumas Automatic40h
Water Resistance
Khaki Navy GMT Auto300m
Dumas Automatic300m
MSRP
Khaki Navy GMT Auto$1,525
Dumas Automatic$239

Full specifications

Case

5 specs
Category
GMT
Diver
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
SII NH35A
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,525
$239

Follow this matchup

Get a note when Hamilton Khaki Navy GMT Auto vs Spinnaker Dumas Automatic gets more votes, a community discussion, or a price drop. No account needed.

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 Automatic

Owners widely praise the Spinnaker Dumas Automatic for its attractive textured blue dial, applied indices, and well-finished case, noting its comfortable wearability due to a short lug-to-lug distance. Some owners flag the use of mineral crystal instead of sapphire and a bracelet with a learning curve and loose keeper. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetics and case finishing at its price point.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.