Side by side

Hamilton Khaki Aviation Pilot Pioneer MechanicalvsSpinnaker Dumas GMT

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

13 of 29 specs differ
Diameter
Khaki Aviation Pilot Pioneer Mechanical36mm
Dumas GMT44mm
Power Reserve
Khaki Aviation Pilot Pioneer Mechanical80h
Dumas GMT40h
Water Resistance
Khaki Aviation Pilot Pioneer Mechanical100m
Dumas GMT300m
MSRP
Khaki Aviation Pilot Pioneer Mechanical$975
Dumas GMT$399

Full specifications

Case

7 specs
Category
Pilot
GMT
Diameter
36mm
44mm
Thickness
9.95mm
15mm
Lug-to-Lug
46mm
48mm
Lug Width
18mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
Crystal
Mineral
Sapphire
Dial Color
Black
Blue

Movement

3 specs
Caliber
H-50
Seiko NH34A
Type
Manual
Automatic
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$975
$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 Pilot Pioneer Mechanical

Owners widely praise the Hamilton Khaki Aviation Pilot Pioneer Mechanical for its superior fit and finish, clean and unique design, and overall value, with one owner calling it a significant step up in build quality. The watch measures 36mm wide with a 41.7mm lug-to-lug and 12.8mm thickness. Some owners express concern over its mineral crystal, with one noting the bezel's detents are "kinda whatever." On balance, owners rate the Hamilton Khaki Aviation Pilot Pioneer Mechanical highly for its build quality and value proposition.

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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