Side by side

Hamilton Khaki Field MechanicalvsSeiko 5 Sports Field series

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

Khaki Field Mechanical
HamiltonKhaki Field Mechanical
MSRP $725
5 Sports Field series
Seiko5 Sports Field series
MSRP $315

At a glance

13 of 29 specs differ
Diameter
Khaki Field Mechanical36mm
5 Sports Field series39.4mm
Power Reserve
Khaki Field Mechanical80h
5 Sports Field series41h
Water Resistance
Khaki Field Mechanical100m
5 Sports Field series100m
MSRP
Khaki Field Mechanical$725
5 Sports Field series$315

Full specifications

Case

5 specs
Category
Field
Sport
Diameter
36mm
39.4mm
Thickness
10.2mm
13.2mm
Lug-to-Lug
46mm
48.1mm
Lug Width
18mm
20mm

Crystal & Dial

3 specs
Crystal
Acrylic
Hardlex
Crystal Shape
Flat
Curved
Lume
None
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
H-50
4R36
Type
Manual
Automatic
Power Reserve
80h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$725
$315

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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

Owners widely praise the Hamilton Khaki Field Mechanical as an archetype of a field watch, highlighting its thin case, excellent finishing, and smooth winding action, with some calling it the best pure field watch available. The daily winding ritual is considered a charming aspect of ownership, and the branding is noted as tasteful and subtle. One owner specifically appreciates the lugs. A drawback cited is the highly reflective, non-AR-coated crystal, and accuracy ranges from -6 seconds per day to unspecified better performance. Overall, owners rate the Hamilton Khaki Field Mechanical highly for its rugged, all-business aesthetic and value as a quintessential field watch.

From video reviewers

The watch's pure field style design is a significant strength. The lume brightness is a shared weakness. Reviewers disagreed on the power reserve, with one stating 80 hours and another 46 hours.

Seiko 5 Sports Field series

The Seiko 5 Sports Field series is praised for its value, offering an accessible explorer-style watch with a GMT complication and excellent legibility thanks to LumiBrite on the dial and bezel. The watches feature a 41mm stainless steel case, 100m water resistance, and are powered by either the 4R36 or 4R34 movement, both with a 41-hour power reserve. One reviewer notes the inclusion of a compass bezel with a lumed pearl and fully lumed Arabic numerals on the dial for the non-GMT models. Overall, reviewers consider the Seiko 5 Sports Field GMT models good value under 500 euros.

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