Hamilton Khaki Field Auto ChronovsZenith Pilot Big Date Flyback

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Hamilton Khaki Field Auto Chrono at true scale

Khaki Field Auto Chrono

Zenith Pilot Big Date Flyback at true scale

Pilot Big Date Flyback

Diameter

42mm

42.5mm

Thickness

14.5mm

n/a

Water Resistance

100m

100m

Power Reserve

60h

60h

MSRP

$2,175

lowest

$12,800

Movement

Hamilton H-21

n/a

Case

5 specs
Diameter
42mm
42.5mm
Thickness
14.5mm
n/a
Lug-to-Lug
n/a
n/a
Lug Width
20mm
n/a
Finish
n/a
Stainless steel

Crystal & Dial

1 specs
Crystal
Sapphire
n/a

Movement

6 specs
Caliber
Hamilton H-21
n/a
Type
Automatic
n/a
Beat Rate
0 vph
36,000 vph
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
Flyback Chronograph, Big Date, Date

Pricing

1 specs
MSRP
$2,175
$12,800
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Hamilton Khaki Field Auto Chrono

Owners and reviewers praise the Hamilton Khaki Field Auto Chrono for its retro military design and value. The 42mm steel case with a brushed finish and polished bezel is noted as well-designed, and its 100m water resistance is a practical feature. One reviewer highlights the symmetrical dial layout, which omits a running seconds indicator in favor of day and date windows, contributing to its tactical sports watch aesthetic. The Hamilton H-21 automatic movement is considered reliable, and the watch is available at prices ranging from $1,299 to $1,695. Overall, owners and reviewers rate the Hamilton Khaki Field Auto Chrono highly for its combination of style, value, and robust build.

From video reviewers

The reliable automatic chronograph movement and rugged, military-inspired aesthetic are cited as strengths. Reviewers did not reach a consensus on any weaknesses.

Zenith Pilot Big Date Flyback

Owners widely praise the Zenith Pilot Big Date Flyback for its visually striking cerulean blue ceramic case and dial, corrugated dial design referencing early aviation, and the satisfyingly smooth action of its flyback chronograph and big date complication. Reviewers and owners alike highlight the exceptional button action and buttery-smooth movement operation, with many noting the big date mechanism's instantaneous, audible, and satisfying change. The 42.5mm case is generally considered to wear slimmer and smaller than its dimensions suggest, though some find the flat wear and lug curvature less than ideal for wrist comfort. One owner notes the watch's impressive lume-filled numerals and artificial-horizon bar at six. On balance, owners and reviewers rate the Zenith Pilot Big Date Flyback highly for its functional pairing of a high-frequency flyback chronograph and big date complication within a modern and visually appealing design.

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