Side by side

Hamilton Khaki Aviation Khaki Pilot GMT AutovsSpinnaker Challenger Automatic

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

Khaki Aviation Khaki Pilot GMT Auto
HamiltonKhaki Aviation Khaki Pilot GMT Auto
MSRP $1,575
Challenger Automatic
SpinnakerChallenger Automatic
MSRP $289

At a glance

10 of 29 specs differ
Diameter
Khaki Aviation Khaki Pilot GMT Auto44mm
Challenger Automatic42mm
Power Reserve
Khaki Aviation Khaki Pilot GMT Auto50h
Challenger Automatic40h
Water Resistance
Khaki Aviation Khaki Pilot GMT Auto100m
Challenger Automatic200m
MSRP
Khaki Aviation Khaki Pilot GMT Auto$1,575
Challenger Automatic$289

Full specifications

Case

6 specs
Category
Pilot
Diver
Diameter
44mm
42mm
Thickness
12.1mm
19mm
Lug-to-Lug
46mm
49.5mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

1 specs
Dial Color
Black
Blue

Movement

2 specs
Caliber
2893-2
SII NH35A
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$1,575
$289

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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 Aviation Khaki Pilot GMT Auto

Owners widely praise the Hamilton Khaki Aviation Khaki Pilot GMT Auto as an underrated, value-packed GMT with good finishing and a sapphire crystal, powered by an ETA 2893-2 movement. Some find the GMT hand obscures legibility, while others consider it legible and appreciate the slim design, though its 44mm size is noted as large by some. One owner describes it as functioning more as an "office GMT" than a traveler's GMT. On balance, owners and reviewers rate the Hamilton Khaki Aviation Khaki Pilot GMT Auto highly for its excellent value and GMT functionality.

Spinnaker Challenger Automatic

The Spinnaker Challenger Automatic is widely praised for its fun, playful design, solid build quality, and satisfying bezel action. Owners appreciate the comfortable 42mm DLC-coated case and the thoughtful integration of the Popeye theme, with the character serving as the hour and minute hands. Reviewers note the reliable Seiko NH35 movement and 300m water resistance. Some owners find the blue lume weaker than expected, and the ultra-domed sapphire crystal presents challenges for photography. The thick rubber strap is also cited as difficult to manage. Overall, owners and reviewers rate the Spinnaker Challenger Automatic highly for its unique character integration and solid dive watch fundamentals at its price point.

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