Side by side

Seiko Astron GPS Solar 2025 Limited EditionvsZelos Nova 37

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

Astron GPS Solar 2025 Limited Edition
SeikoAstron GPS Solar 2025 Limited Edition
MSRP $2,900
Nova 37
ZelosNova 37
MSRP $899

At a glance

16 of 29 specs differ
Diameter
Astron GPS Solar 2025 Limited Edition43.4mm
Nova 3737mm
Power Reserve
Astron GPS Solar 2025 Limited Edition40h
Nova 3740h
Water Resistance
Astron GPS Solar 2025 Limited Edition100m
Nova 3750m
MSRP
Astron GPS Solar 2025 Limited Edition$2,900
Nova 37$899

Full specifications

Case

7 specs
Category
Chronograph
Dress
Diameter
43.4mm
37mm
Thickness
13.4mm
7mm
Lug-to-Lug
49.5mm
37mm
Lug Width
14mm
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
100m
50m

Crystal & Dial

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

Movement

3 specs
Caliber
5X83
ETA 7001
Type
Quartz
Manual
Jewels
14
25

Pricing

1 specs
MSRP
$2,900
$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 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.

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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