Which is cheaper, the Hamilton Khaki Field Mechanical Bronze or the Spinnaker Dumas GMT?

At MSRP the Spinnaker Dumas GMT is the cheaper of the two at $399, against $1,025 for the Hamilton Khaki Field Mechanical Bronze — a $626 gap before any retailer discounting.

Which is bigger, the Hamilton Khaki Field Mechanical Bronze or the Spinnaker Dumas GMT?

The Spinnaker Dumas GMT wears larger at 44mm versus 38mm for the Hamilton Khaki Field Mechanical Bronze — a 6mm difference across the dial.

Which has better water resistance, the Hamilton Khaki Field Mechanical Bronze or the Spinnaker Dumas GMT?

The Spinnaker Dumas GMT is rated to 300m versus 50m for the Hamilton Khaki Field Mechanical Bronze.

Which has a longer power reserve, the Hamilton Khaki Field Mechanical Bronze or the Spinnaker Dumas GMT?

The Hamilton Khaki Field Mechanical Bronze carries a 80-hour power reserve against 40 hours on the Spinnaker Dumas GMT.

What movement does the Hamilton Khaki Field Mechanical Bronze run compared to the Spinnaker Dumas GMT?

The Hamilton Khaki Field Mechanical Bronze runs a manual caliber (H-50), while the Spinnaker Dumas GMT runs a automatic (Seiko NH34A).

Side by side

Hamilton Khaki Field Mechanical BronzevsSpinnaker Dumas GMT

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

Hamilton Khaki Field Mechanical Bronze

h69459510

MSRP $1,025

Spinnaker Dumas GMT

dumas-gmt-automatic-ocean-blue-sp-5119-55

MSRP $399

At a glance

12 of 29 specs differ

Diameter

Khaki Field Mechanical Bronze38mm

Dumas GMT44mm

Power Reserve

Khaki Field Mechanical Bronze80h

Dumas GMT40h

Water Resistance

Khaki Field Mechanical Bronze50m

Dumas GMT300m

MSRP

Khaki Field Mechanical Bronze$1,025

Dumas GMT$399

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Dial Color

White

Blue

Movement

3 specs

Caliber

H-50

Seiko NH34A

Type

Manual

Automatic

Power Reserve

80h

40h

Pricing

1 specs

MSRP

$1,025

$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 Field Mechanical Bronze

Owners and reviewers widely praise the Hamilton Khaki Field Mechanical Bronze for its attractive bronze case that develops a unique patina, its comfortable 38mm size, and the satisfying winding action of its hand-wound H-50 movement, which provides an 80-hour power reserve. The vintage military design, legible matte black dial with beige lume, and overall value are frequently highlighted as key strengths. Some owners note the lugs appear large, and while earlier models had 50m water resistance, newer versions offer 100m. Overall, owners and reviewers rate the Hamilton Khaki Field Mechanical Bronze highly for its vintage aesthetic and character-building patina at an accessible price.

From video reviewers

The watch's bronze case develops a unique patina over time, adding to its character. A potential weakness is the watch's bronze reacting with certain skin types or environments, causing discoloration or staining. Reviewers disagree on the lume brightness, with one reviewer finding it lacking and the other not mentioning it.

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.

Fratello

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