Side by side

Bremont MBIIvsSeiko Astron

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

MBII
BremontMBII
MSRP $5,400
Astron
SeikoAstron
MSRP $2,700

At a glance

14 of 29 specs differ
Diameter
MBII43mm
Astron43.3mm
Power Reserve
MBII40h
Astron40h
Water Resistance
MBII100m
Astron100m
MSRP
MBII$5,400
Astron$2,700

Full specifications

Case

6 specs
Category
Pilot
Chronograph
Diameter
43mm
43.3mm
Thickness
13.4mm
Lug-to-Lug
49.5mm
Lug Width
22mm
14mm
Material
Titanium (DLC coated)
Titanium

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Dial Color
White
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
BE-36AE
5X83
Type
Automatic
Quartz
Jewels
25
14

Pricing

1 specs
MSRP
$5,400
$2,700

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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 MBII

The Bremont MBII is praised for its striking, high-tech pilot's watch aesthetic, reassuring heft, and quality feel, featuring an anti-shock system and customizable barrel. Owners note its condition can be excellent with minor hairlines, and it is presented with all original boxes and papers. A drawback cited is its 38-hour power reserve compared to newer movements. Overall, owners and reviewers consider the Bremont MBII affordable and a good representation of the brand.

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.

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