Side by side

Seiko AstronvsZelos GT

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

Astron
SeikoAstron
MSRP $2,500
GT
ZelosGT
MSRP $499

At a glance

12 of 29 specs differ
Diameter
Astron42mm
GT42mm
Power Reserve
Astron40h
GT40h
Water Resistance
Astron100m
GT100m
MSRP
Astron$2,500
GT$499

Full specifications

Case

5 specs
Category
GMT
Chronograph
Thickness
12.4mm
10.8mm
Lug-to-Lug
49.5mm
42mm
Lug Width
14mm
22mm
Material
Titanium
316L Stainless Steel

Crystal & Dial

3 specs
AR Coating
Super-clear coating
Inner
Dial Color
Black
SS - Azzurro
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
5X83
Miyota 9133
Type
Quartz
Automatic
Jewels
14
25

Pricing

1 specs
MSRP
$2,500
$499

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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.

Seiko Astron

Owners widely praise the Seiko Astron for its spectacular technology, solar-powered quartz movement, and GPS time synchronization, making it a convenient grab-and-go option. The watch is frequently noted for its comfortable and lightweight titanium build, with some models featuring well-finished cases and robust ceramic bezels. Reviewers and owners alike highlight the dial's dynamic and shiny appearance, with textured hour markers and high-contrast edges. Accuracy is generally considered good, with figures ranging from +/- 15 seconds per month to within 1/2 second per day, easily corrected by GPS signal. However, some owners note that DST requires manual adjustment and that automatic time syncing depends on proximity to radio wave towers. The price point is a concern for some, who feel it competes with luxury watches without the same aesthetic appeal. One owner pointed out minimal lume and a slight misalignment of the minute hand on their model.

Zelos GT

The Zelos GT is lauded for its value and bold design, with owners highlighting the cool power reserve meter and superb 3-point micro-adjust bracelet. Some owners find the case and lugs could hug the wrist better, and the bracelet is noted as being quite long, requiring significant link removal for a 7.1-inch wrist. The dark green dial, while inspired by Lamborghini, is described as appearing mostly black. Overall, owners rate the Zelos GT highly for its value and the quality of its bracelet at the price point.

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