Side by side

Bremont SupernovavsSeiko Astron GPS Solar 2025 Limited Edition

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

Supernova
BremontSupernova
MSRP $8,250
Astron GPS Solar 2025 Limited Edition
SeikoAstron GPS Solar 2025 Limited Edition
MSRP $2,600

At a glance

13 of 29 specs differ
Diameter
Supernova41mm
Astron GPS Solar 2025 Limited Edition42mm
Power Reserve
Supernova40h
Astron GPS Solar 2025 Limited Edition40h
Water Resistance
Supernova100m
Astron GPS Solar 2025 Limited Edition100m
MSRP
Supernova$8,250
Astron GPS Solar 2025 Limited Edition$2,600

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
41mm
42mm
Thickness
14.4mm
12mm
Lug-to-Lug
47.9mm
Lug Width
14.4mm
14mm
Material
316L Stainless Steel (DLC coated)
Titanium

Crystal & Dial

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

Movement

3 specs
Caliber
3X62
Type
Automatic
Quartz
Jewels
25
10

Pricing

1 specs
MSRP
$8,250
$2,600

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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.

Bremont Supernova

The Bremont Supernova is praised for its new ENG375 movement, big date, and power reserve indicator, with its 40mm steel case featuring mixed finishing and an integrated bracelet. Owners note good but not great lume, well-balanced proportions, and a premium feel for its price, despite a 173-gram weight. Some community members find the design derivative and the £8,000 price tag overly optimistic, with mixed views on the date window and crown guard. The proprietary Trip-Tick case construction offers shock protection, and the movement provides a 65-hour power reserve. Overall, owners and reviewers highlight the integrated bracelet and proprietary movement as key strengths of the Bremont Supernova.

Seiko Astron GPS Solar 2025 Limited Edition

The Seiko Astron GPS Solar 2025 Limited Edition is widely praised for its advanced GPS time and date adjustment capabilities, powered by light to eliminate battery changes. Owners and reviewers highlight its impressive accuracy and the convenience of automatic time zone updates, with some specifically commending the wearability of the 39mm size and its clean, simple design. However, reception of the GPS signal requires an unobstructed view of the sky, and manual time zone adjustments are necessary for Daylight Saving Time on some variants. One owner notes a slight imperfection in chapter ring alignment on the 39mm model. On balance, owners and reviewers rate the Seiko Astron GPS Solar 2025 Limited Edition highly for its satellite-powered timekeeping and improved wearability in the 39mm configuration.

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