Side by side

Hamilton Khaki Field King Day-DatevsGrand Seiko SBGR321

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

Khaki Field King Day-Date
HamiltonKhaki Field King Day-Date
MSRP $845
SBGR321
Grand SeikoSBGR321
MSRP $5,200

At a glance

7 of 29 specs differ
Diameter
Khaki Field King Day-Date40mm
SBGR32140mm
Power Reserve
Khaki Field King Day-Date80h
SBGR32172h
Water Resistance
Khaki Field King Day-Date100m
SBGR321100m
MSRP
Khaki Field King Day-Date$845
SBGR321$5,200

Full specifications

Case

3 specs
Category
Field
Dress
Thickness
11.8mm
13mm
Lug-to-Lug
50mm
46.6mm

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

2 specs
Caliber
H-40
9S65
Power Reserve
80h
72h

Pricing

1 specs
MSRP
$845
$5,200

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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 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.

Grand Seiko SBGR321

Grand Seiko SBGR321 owners and reviewers widely praise its attractive design, compelling dimensions, and robust movement. The watch features sharp case lines with contrasting brushing and polishing, a 40mm steel case that provides presence without bulk, and 100m water resistance. Its sunburst blue dial, inspired by the dawn sky over Mount Iwate, showcases Grand Seiko's signature finishing on applied markers and hands, with a red-tipped seconds hand. The 9S65 automatic movement is noted for its precision, running within specifications, with one source reporting a +5 to -3 seconds a day rate and a 3-day power reserve. A blue rotor with a crimson rim, also inspired by Mount Iwate, is visible through the display caseback. On balance, owners and reviewers rate the Grand Seiko SBGR321 highly for its exceptional finishing and compelling blue dial design at its price point.

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