Side by side

Seiko AstronvsZelos Great White 43

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

Astron
SeikoAstron
MSRP $2,400
Great White 43
ZelosGreat White 43
MSRP $599

At a glance

13 of 29 specs differ
Diameter
Astron42mm
Great White 4343mm
Power Reserve
Astron40h
Great White 4340h
Water Resistance
Astron100m
Great White 43300m
MSRP
Astron$2,400
Great White 43$599

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
42mm
43mm
Lug-to-Lug
47.9mm
43mm
Lug Width
14mm
22mm
Material
Titanium
Titanium (DLC coated)
Water Resistance
100m
300m

Crystal & Dial

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

Movement

3 specs
Caliber
3X62
Miyota 9015
Type
Quartz
Automatic
Jewels
10
25

Pricing

1 specs
MSRP
$2,400
$599

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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

The Seiko Astron is widely praised for its advanced time-telling technology, including GPS and radio wave synchronization, and its self-sufficient solar-powered quartz movement. Owners appreciate the detailed and high-contrast dials, comfortable and lightweight titanium builds, and well-finished cases and bracelets. Some users report excellent accuracy, with one noting +/- 15 seconds per month, while another finds the autonomous movement's accuracy of 1/2 second per day acceptable due to easy correction via GPS sync. However, the Seiko Astron's price point is frequently cited as a drawback, with some finding it high for a quartz watch, particularly when compared to luxury or mechanical alternatives. Specific criticisms include manual DST implementation, the need for outdoor sync, sparse lume, and a minute hand that sits slightly off on one model, with accuracy of +13 sec/month being disappointing for its cost on another.

Zelos Great White 43

Owners widely praise the Zelos Great White 43's "unbelievable" and "amazing" lume, particularly on the carbon and Frost variants. The Miyota 9015 movement and 300m water resistance are noted features. Some owners find the 43mm size large, while others report it wears well. Opinions are divided on colorways, with some disappointed by the absence of a "Nebula" option and others finding the "Arctic" version striking. Overall, owners rate the Zelos Great White 43 highly for its exceptional lume and robust specifications at the price point.

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