Side by side

Hamilton Khaki Aviation Khaki Pilot GMT AutovsSeiko Prospex Sea Save the Ocean Special Edition

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 Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its attractive, unique, and textured dials, often described as having a "Grand Seiko feel" at a more accessible price point, with specific mentions of wave patterns, lagoon hues, and manta ray motifs. Owners appreciate the smooth bezel operation and satisfactory lume. Accuracy figures vary, with one owner reporting +5 seconds per day, while another notes a range from +1/+2 to about -6 seconds per day. The 6R35 movement offers a 70-hour power reserve, and some models feature sapphire crystals. Criticisms include a desire for exhibition casebacks and concerns about the quality and security of the stamped metal clasps and bracelets, which are frequently described as rattly or underwhelming, though this is noted as a common Seiko trait. Some owners are split on the number of Save the Ocean variations and dislike the cyclops magnifier.

At a glance

12 of 29 specs differ
Diameter
Khaki Aviation Khaki Pilot GMT Auto44mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
Khaki Aviation Khaki Pilot GMT Auto50h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Khaki Aviation Khaki Pilot GMT Auto100m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Khaki Aviation Khaki Pilot GMT Auto$1,575
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

5 specs
Category
Pilot
Diver
Diameter
44mm
45mm
Thickness
12.1mm
13.2mm
Lug-to-Lug
0mm
47.7mm
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
4R36
Power Reserve
50h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$1,575
$625
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