Side by side

Bremont Altitude ChronographvsSeiko Astron

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

Altitude Chronograph
BremontAltitude Chronograph
MSRP $6,300
Astron
SeikoAstron
MSRP $3,100

At a glance

13 of 29 specs differ
Diameter
Altitude Chronograph42mm
Astron44.1mm
Power Reserve
Altitude Chronograph40h
Astron40h
Water Resistance
Altitude Chronograph100m
Astron100m
MSRP
Altitude Chronograph$6,300
Astron$3,100

Full specifications

Case

5 specs
Diameter
42mm
44.1mm
Thickness
14.7mm
14.4mm
Lug-to-Lug
50mm
Lug Width
14.7mm
14mm
Material
316L Stainless Steel (DLC coated)
Titanium

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Dial Color
Silver
Black
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
$6,300
$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 Altitude Chronograph

Owners note faint marks on the case sides and back, with minor wear and creasing on the strap. Reviewers flag the "DANGER EJECTION SEAT" wordmark on the dial as a divisive design choice that disrupts the MB series' usual stark tone, though they praise the improved smoothness and click precision of the Roto Click rotating bezel. On balance, the Bremont Altitude Chronograph elicits mixed reactions, with design elements like the dial text being a point of contention for reviewers.

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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