Side by side

Hamilton Khaki Field King AutovsJack Mason Strat-o-timer GMT

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 Auto

Owners and reviewers widely praise the Hamilton Khaki Field King Auto for its 80-hour power reserve, hacking capability, and snappy day-date function, with accuracy figures ranging from +1 to +5 seconds per day. The watch is also noted for its legibility, attractive dial options, and 100m water resistance. Some owners find the stock strap stiff and the case finishing lacks fine detail, while others mention the lume is decent but fades significantly after about 30 minutes. The lack of an anti-reflective coating on the sapphire crystal is a recurring point, and the crown does not feel like it fully pushes in for some. On balance, owners and reviewers rate the Hamilton Khaki Field King Auto highly for its robust feature set and value, particularly its day-date complication and extended power reserve.

From video reviewers

The 80-hour power reserve from the H-40 movement is a significant advantage. The lack of AR coating on the sapphire crystal hinders legibility in direct light, and the 50-meter water resistance is limited for a field watch. Reviewers disagreed on the watch case geometry and ergonomics, with one noting it contributed to buyer's remorse and another suggesting it should offer a comfortable fit.

Jack Mason Strat-o-timer GMT

Owners widely praise the Jack Mason Strat-o-timer GMT for its impressive fit and finish, excellent value, and true traveler GMT complication, especially considering its price point. Reviewers and owners alike highlight the comfortable 40mm tonneau case, sapphire crystal bezel, and retro styling. Some owners note the hour markers are "chubby" but do not affect legibility, and the strap ends are slightly large. One owner describes the 7-link bracelet as rivaling luxury brands. On balance, owners and reviewers rate the Jack Mason Strat-o-timer GMT highly for its build quality and value proposition.

At a glance

8 of 29 specs differ
Diameter
Khaki Field King Auto40mm
Strat-o-timer GMT40mm
Power Reserve
Khaki Field King Auto80h
Strat-o-timer GMT42h
Water Resistance
Khaki Field King Auto50m
Strat-o-timer GMT200m
MSRP
Khaki Field King Auto$845
Strat-o-timer GMT$1,099

Full specifications

Case

4 specs
Category
Field
Thickness
11.15mm
13.2mm
Lug-to-Lug
0mm
47mm
Water Resistance
50m
200m

Crystal & Dial

1 specs
Dial Color
Black

Movement

2 specs
Caliber
H-40 (ETA 2834-2 base)
Miyota 9075
Power Reserve
80h
42h

Pricing

1 specs
MSRP
$845
$1,099
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