Side by side

Brew MetricvsSeiko Astron GPS Solar 2025 Limited Edition

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

Metric
BrewMetric
MSRP $475
Astron GPS Solar 2025 Limited Edition
SeikoAstron GPS Solar 2025 Limited Edition
MSRP $2,900

At a glance

20 of 29 specs differ
Diameter
Metric36mm
Astron GPS Solar 2025 Limited Edition43.4mm
Power Reserve
Metric
Astron GPS Solar 2025 Limited Edition40h
Water Resistance
Metric50m
Astron GPS Solar 2025 Limited Edition100m
MSRP
Metric$475
Astron GPS Solar 2025 Limited Edition$2,900

Full specifications

Case

8 specs
Diameter
36mm
43.4mm
Thickness
10.75mm
13.4mm
Lug-to-Lug
41.5mm
49.5mm
Lug Width
19.85mm
14mm
Material
Stainless Steel 316L
Titanium
Finish
Brushed and polished
Water Resistance
50m
100m
Caseback
Stainless Steel 316L
Solid

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Super-clear coating
Indices
Applied
Lume
None
LumiBrite on hands and index(es)

Movement

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

Pricing

1 specs
MSRP
$475
$2,900

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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.

Brew Metric

The Brew Metric is widely praised for its 1970s-inspired retro design, with reviewers and owners specifically highlighting its unique dial aesthetics, compact 36mm case size, and comfortable wearability on various wrist sizes. The watch's finishing is frequently lauded, with particular appreciation for its contrasting brushed and polished surfaces and well-executed gold treatment. Owners also note the pleasing feel of the pushers and crown, the accuracy of the VK68 meca-quartz movement, and the sapphire crystal. However, some owners report quality control issues, including dial defects and missing lume, and a few find the bezel dents easily. The bracelet is a point of contention, with some finding it uncomfortable and prone to pulling arm hairs, while others praise its dramatic taper. The watch's 50-meter water resistance is considered cautious by one reviewer, and the lug width of 19.85mm limits strap options.

From video reviewers

The watch's unique design and compact dimensions are praised. The bracelet is noted as stiff and lacking flexibility. Reviewers were divided on whether the Seiko NH35A movement or the meca-quartz movement offered better value at the price point.

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.

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