Side by side

Hamilton Khaki Aviation X-Wind GMT Chrono QuartzvsSeiko Astron

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 X-Wind GMT Chrono Quartz

Owners praise the Hamilton Khaki Aviation X-Wind GMT Chrono Quartz for its sturdy build, 100-meter water resistance, and screw-down crown, with one owner noting outstanding fit, finish, and quality. The dial design is described as meticulous, featuring raised, brushed stainless steel indices and a downward-pointing triangle. However, some owners find the watch big and chunky, and its specific GMT and chronograph features are considered by some to be of limited practical use. Lume is described as good but not amazing, and the AR coating on the sapphire crystal is decent. Accuracy figures vary, with one owner reporting the watch gained 6 seconds in its first few days of wear. Overall, owners rate the Hamilton Khaki Aviation X-Wind GMT Chrono Quartz as a dependable and well-built travel watch, particularly for its robust construction and detailed dial design.

Seiko Astron

Owners widely praise the Seiko Astron for its spectacular technology, self-sufficiency, and grab-and-go convenience, with one owner calling it the best watch they have ever had. Reviewers and owners highlight the detailed and well-managed dials, often with "Grand Seiko-esque" precision, and appreciate the comfortable, lightweight titanium construction. The solar-powered quartz movement with GPS time sync is a significant draw, offering accurate timekeeping. However, the price point of around €2250-€2400 is frequently cited as high for a quartz watch. Some owners note manual DST implementation, dependence on outdoor conditions or radio tower proximity for GPS sync, and sparse lume. One owner experienced the minute hand sitting slightly off and found the recessed buttons difficult to operate. Accuracy figures vary, with some reporting +/- 15 seconds per month without GPS, while others note autonomous quartz movement accuracy of up to 1/2 second per day.

At a glance

12 of 29 specs differ
Diameter
Khaki Aviation X-Wind GMT Chrono Quartz46mm
Astron44.1mm
Power Reserve
Khaki Aviation X-Wind GMT Chrono Quartz40h
Astron40h
Water Resistance
Khaki Aviation X-Wind GMT Chrono Quartz100m
Astron100m
MSRP
Khaki Aviation X-Wind GMT Chrono Quartz$1,245
Astron$3,100

Full specifications

Case

6 specs
Category
Pilot
Chronograph
Diameter
46mm
44.1mm
Thickness
13.75mm
14.4mm
Lug-to-Lug
46mm
50mm
Lug Width
22mm
14mm
Material
Stainless Steel
Titanium

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
G10.962
5X83
Jewels
25
14

Pricing

1 specs
MSRP
$1,245
$3,100
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