Side by side

Hamilton Khaki Field AutovsMaen Grand Tonneau Ultra Thin

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

Khaki Field Auto
HamiltonKhaki Field Auto
MSRP $845
Grand Tonneau Ultra Thin
MaenGrand Tonneau Ultra Thin
MSRP $1,519

At a glance

11 of 29 specs differ
Diameter
Khaki Field Auto38mm
Grand Tonneau Ultra Thin34mm
Power Reserve
Khaki Field Auto80h
Grand Tonneau Ultra Thin40h
Water Resistance
Khaki Field Auto100m
Grand Tonneau Ultra Thin50m
MSRP
Khaki Field Auto$845
Grand Tonneau Ultra Thin$1,519

Full specifications

Case

7 specs
Category
Field
Dress
Diameter
38mm
34mm
Thickness
11mm
6.4mm
Lug-to-Lug
46mm
Lug Width
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
50m

Crystal & Dial

1 specs
Dial Color
Black
MNL.04

Movement

2 specs
Caliber
H-10
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$845
$1,519

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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.

Maen Grand Tonneau Ultra Thin

Owners widely report the Maen Grand Tonneau Ultra Thin features a La Joux-Perret D101 manual-wind movement and a double-layer enamel dial. Some owners criticize the bracelet design and find the dial too small and lacking indices. One owner describes the Maen Grand Tonneau Ultra Thin as "hideous with a good movement." On balance, owners are divided on the Maen Grand Tonneau Ultra Thin, with some appreciating its movement and dial while others find its design unappealing.

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