Side by side

Bremont Supermarine ChronovsSeiko Astron

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

Supermarine Chrono
BremontSupermarine Chrono
MSRP $6,850
Astron
SeikoAstron
MSRP $3,100

At a glance

13 of 29 specs differ
Diameter
Supermarine Chrono43mm
Astron44.1mm
Power Reserve
Supermarine Chrono40h
Astron40h
Water Resistance
Supermarine Chrono300m
Astron100m
MSRP
Supermarine Chrono$6,850
Astron$3,100

Full specifications

Case

6 specs
Diameter
43mm
44.1mm
Thickness
15.87mm
14.4mm
Lug-to-Lug
50mm
Lug Width
22mm
14mm
Material
Stainless Steel (DLC coated)
Titanium
Water Resistance
300m
100m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
BE-50AE
5X83
Type
Automatic
Quartz
Jewels
25
14

Pricing

1 specs
MSRP
$6,850
$3,100

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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 Supermarine Chrono

The Bremont Supermarine Chrono's black dial and understated bezel markings allow it to transition effectively from rugged use to evening events. On balance, owners and reviewers find the Bremont Supermarine Chrono to be a handsome and functional watch, with its versatile dial design being a key strength.

Seiko Astron

Owners widely praise the Seiko Astron for its spectacular technology, self-sufficiency, and grab-and-go convenience, with one owner calling it the best watch they have ever had. Reviewers and owners highlight the detailed and well-managed dials, often with "Grand Seiko-esque" precision, and appreciate the comfortable, lightweight titanium construction. The solar-powered quartz movement with GPS time sync is a significant draw, offering accurate timekeeping. However, the price point of around €2250-€2400 is frequently cited as high for a quartz watch. Some owners note manual DST implementation, dependence on outdoor conditions or radio tower proximity for GPS sync, and sparse lume. One owner experienced the minute hand sitting slightly off and found the recessed buttons difficult to operate. Accuracy figures vary, with some reporting +/- 15 seconds per month without GPS, while others note autonomous quartz movement accuracy of up to 1/2 second per day.

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