Side by side

Hamilton Khaki Aviation X-Wind GMT Chrono QuartzvsSeiko Astron GPS Solar 2025 Limited 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 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 GPS Solar 2025 Limited Edition

The Seiko Astron GPS Solar 2025 Limited Edition is lauded for its advanced satellite timekeeping and perpetual calendar functionality, offering global time and location updates via GPS signals. Owners appreciate its well-built titanium or steel case, often featuring a ceramic bezel, and the unique asymmetrical design inspired by the 1983 Seiko 7A28 6000. However, its substantial 47mm size and 16.5mm thickness are frequently noted as drawbacks, with some finding it wears large and is difficult to fit under shirt sleeves. The perpetual calendar is limited to displaying only the date, and GPS signal reception requires a clear view of the sky, posing challenges indoors. The watch is priced around $2,900 and is limited to 3,000 pieces. Overall, owners and reviewers value the Seiko Astron GPS Solar 2025 Limited Edition for its cutting-edge technology and distinctive design, despite its considerable dimensions.

At a glance

12 of 29 specs differ
Diameter
Khaki Aviation X-Wind GMT Chrono Quartz46mm
Astron GPS Solar 2025 Limited Edition43.4mm
Power Reserve
Khaki Aviation X-Wind GMT Chrono Quartz40h
Astron GPS Solar 2025 Limited Edition40h
Water Resistance
Khaki Aviation X-Wind GMT Chrono Quartz100m
Astron GPS Solar 2025 Limited Edition100m
MSRP
Khaki Aviation X-Wind GMT Chrono Quartz$1,245
Astron GPS Solar 2025 Limited Edition$2,900

Full specifications

Case

6 specs
Category
Pilot
Chronograph
Diameter
46mm
43.4mm
Thickness
13.75mm
13.4mm
Lug-to-Lug
46mm
49.5mm
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
$2,900
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