Side by side

Hamilton Khaki Field King Day-DatevsSeiko 5 Sports Field series

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

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 King Day-Date

Hamilton Khaki Field King Day-Date owners widely praise its classic styling, 80-hour power reserve, and excellent value. Opinions on water resistance are split; some express concern over the 50m rating, while others find it sufficient for daily wear and swimming. One owner notes the stock strap can be stiff. Service costs range from $55 for routine maintenance to $220 for full service with movement replacement. On balance, owners rate the Hamilton Khaki Field King Day-Date highly for its classic aesthetics and impressive power reserve at its price point.

From video reviewers

The 80-hour power reserve from the H-40 automatic movement is a significant strength. The 50-meter water resistance is considered a limitation for a field watch.

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.

At a glance

12 of 29 specs differ
Diameter
Khaki Field King Day-Date40mm
5 Sports Field series39.4mm
Power Reserve
Khaki Field King Day-Date80h
5 Sports Field series41h
Water Resistance
Khaki Field King Day-Date100m
5 Sports Field series100m
MSRP
Khaki Field King Day-Date$845
5 Sports Field series$315

Full specifications

Case

4 specs
Category
Field
Sport
Diameter
40mm
39.4mm
Thickness
11.8mm
13.2mm
Lug-to-Lug
50mm
48.1mm

Crystal & Dial

4 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Curved
Dial Color
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
H-40 (ETA 2834-2 base)
Seiko 4R36
Power Reserve
80h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$845
$315
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