Side by side

Hamilton Khaki Aviation Khaki Pilot GMT AutovsSeiko Prospex Sea

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 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.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

At a glance

12 of 29 specs differ
Diameter
Khaki Aviation Khaki Pilot GMT Auto44mm
Prospex Sea43.8mm
Power Reserve
Khaki Aviation Khaki Pilot GMT Auto50h
Prospex Sea41h
Water Resistance
Khaki Aviation Khaki Pilot GMT Auto100m
Prospex Sea200m
MSRP
Khaki Aviation Khaki Pilot GMT Auto$1,575
Prospex Sea$625

Full specifications

Case

5 specs
Category
Pilot
Diver
Diameter
44mm
43.8mm
Thickness
12.1mm
12.8mm
Lug-to-Lug
0mm
48.7mm
Water Resistance
100m
200m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Dial Color
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
ETA 2893-2
4R35
Power Reserve
50h
41h
Jewels
0
23

Pricing

1 specs
MSRP
$1,575
$625
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