Side by side

Hamilton Khaki Field AutovsMarathon GSAR (Government Search & Rescue) Diver's Automatic

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

Khaki Field Auto
HamiltonKhaki Field Auto
MSRP $845
GSAR (Government Search & Rescue) Diver's Automatic
MarathonGSAR (Government Search & Rescue) Diver's Automatic
MSRP $2,100

At a glance

10 of 29 specs differ
Diameter
Khaki Field Auto38mm
GSAR (Government Search & Rescue) Diver's Automatic41mm
Power Reserve
Khaki Field Auto80h
GSAR (Government Search & Rescue) Diver's Automatic40h
Water Resistance
Khaki Field Auto100m
GSAR (Government Search & Rescue) Diver's Automatic300m
MSRP
Khaki Field Auto$845
GSAR (Government Search & Rescue) Diver's Automatic$2,100

Full specifications

Case

6 specs
Category
Field
Diver
Diameter
38mm
41mm
Thickness
11mm
14mm
Lug-to-Lug
46mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

1 specs
Dial Color
Black
Anthracite

Movement

2 specs
Caliber
H-10
Sellita SW200-1
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$845
$2,100

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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 Auto

Owners and reviewers widely praise the Hamilton Khaki Field Auto for its classic military design, legibility, and versatile modern-vintage aesthetic that can be dressed up or down. The H-10 movement is frequently highlighted for its reliable accuracy, with figures ranging from less than one second per day to +/- 3 seconds per day, and its advertised 80-hour power reserve. Reviewers note its solid build and 100m water resistance, while owners appreciate its comfortable wearability and practical beauty. Some owners criticize the bracelet's limited micro-adjustments and the lack of anti-reflective coating on the crystal, which can cause glare. One owner considers the watch "just ok" and not worth its current price, citing legibility issues with smaller dial markers and the omission of a screw-down crown. Another reviewer finds the sunburst and concentric graining on newer dials to be too flashy for a traditional field watch.

From video reviewers

The Hamilton Khaki Field Auto's smooth and precise bezel action is a standout feature. The watch's lume brightness is somewhat lacking, which might be a drawback for those who prefer a brighter glow in the dark. Reviewers disagree on the watch's size, with one reviewer finding the 38mm to be a pleasant surprise, while the watch is also available in 42mm.

Marathon GSAR (Government Search & Rescue) Diver's Automatic

The Marathon GSAR (Government Search & Rescue) Diver's Automatic is widely praised for its legibility, comfort, and exceptional tritium illumination, with reviewers highlighting its utilitarian, military-equipment feel and a 41mm case size considered ideal. Owners appreciate its grippy bezel and the 300 meters of water resistance provided by the screw-down crown, deeming it a solid value for a Swiss-made tool watch. Some owners report quality control issues, with one user needing to warranty two watches, and another notes the GSAR wears taller than other models, leading to occasional bumping. The reliable ETA 2824-A2 movement is a consistent feature. Overall, owners and reviewers rate the Marathon GSAR (Government Search & Rescue) Diver's Automatic highly for its bright tritium lume and robust, no-nonsense tool watch design.

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