Side by side

Seiko AstronvsBrew Super Metric

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

Astron
SeikoAstron
MSRP $2,700
Super Metric
BrewSuper Metric
MSRP $475

At a glance

21 of 29 specs differ
Diameter
Astron43.3mm
Super Metric36mm
Power Reserve
Astron40h
Super Metric
Water Resistance
Astron100m
Super Metric50m
MSRP
Astron$2,700
Super Metric$475

Full specifications

Case

8 specs
Diameter
43.3mm
36mm
Thickness
13.4mm
10.75mm
Lug-to-Lug
49.5mm
41.5mm
Lug Width
14mm
19.85mm
Material
Titanium
Stainless Steel 316L
Finish
Brushed and polished
Water Resistance
100m
50m
Caseback
Solid
Stainless Steel 316L

Crystal & Dial

5 specs
Crystal Shape
Curved
AR Coating
Super-clear coating
Dial Color
Black
Fine-Texture
Indices
Applied
Lume
LumiBrite on hands and index(es)
None

Movement

7 specs
Caliber
5X83
VK68
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
14
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Chronograph

Pricing

1 specs
MSRP
$2,700
$475

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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 timekeeping technology, including GPS and radio wave synchronization, offering grab-and-go convenience and exceptional accuracy, with some users reporting +/- 15 seconds per month or even 1/2 second per day for its autonomous quartz movement. Owners appreciate its well-finished titanium cases and bracelets, detailed dials with high-contrast markers, and lightweight, comfortable wearability. However, some find the price point of around $2,000 to $2,400 expensive, noting that GPS sync works best outdoors and that certain models lack screw-down casebacks, impacting water resistance. The lume is described as sparse on some models, and recessed buttons require tools to operate. Overall, owners and reviewers rate the Seiko Astron highly for its cutting-edge technology and comfortable, well-finished design, with the value proposition becoming more compelling when models are found at a discount.

From video reviewers

The watch's automatic time zone adjustment via GPS is a notable feature. The watch's solar-powered charging system can take up to 6 months to fully charge, which may not be ideal for users who need a quick power boost.

Brew Super Metric

Owners widely praise the Brew Super Metric's unique, asymmetrical, and colorful 70s-inspired design, with many appreciating its finishing and dial details for the price. Some owners find the integrated bracelet can be a hair-puller, and the watch wears larger than its 36mm dimensions due to the square case and bracelet. The lume is noted as weak, and some find the dial graphics busy, though others love the colorful, essence-keeping 2.0 design. On balance, owners rate the Brew Super Metric highly for its distinctive style and value, with many finding it a fun and comfortable daily wearer.

From video reviewers

The Brew Super Metric's Meca-Quartz Chrono functionality is one of the best the reviewer has seen. The watch's unique design is a key part of its charm. The Seiko meca-quartz caliber contributes to its value for the price. The lume could be improved, as it's not as bright as some other watches in its class. The price may not be the cheapest option in its class.

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