Side by side

Seiko AstronvsZelos Nova 37

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

Astron
SeikoAstron
MSRP $2,400
Nova 37
ZelosNova 37
MSRP $899

At a glance

14 of 29 specs differ
Diameter
Astron42mm
Nova 3737mm
Power Reserve
Astron40h
Nova 3740h
Water Resistance
Astron100m
Nova 3750m
MSRP
Astron$2,400
Nova 37$899

Full specifications

Case

6 specs
Diameter
42mm
37mm
Thickness
12mm
7mm
Lug-to-Lug
47.9mm
37mm
Lug Width
14mm
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
100m
50m

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Super-clear coating
Inner
Dial Color
Black
Salmon
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
3X62
ETA 7001
Type
Quartz
Manual
Jewels
10
25

Pricing

1 specs
MSRP
$2,400
$899

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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 Nova 37

Owners widely praise the Zelos Nova 37's spectacular 37mm dimensions and extremely light, thin wearability. The meteorite dial is frequently highlighted as a captivating feature, though some reviewers suggest simpler indices would improve legibility over the Arabic numerals. The watch is considered a considerable value at $1,999. On balance, owners and reviewers rate the Zelos Nova 37 highly for its excellent dimensions and dial execution at the price.

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