Side by side

Bremont ALT1-CvsSeiko Astron

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

ALT1-C
BremontALT1-C
MSRP $6,150
Astron
SeikoAstron
MSRP $2,500

At a glance

13 of 29 specs differ
Diameter
ALT1-C43mm
Astron42mm
Power Reserve
ALT1-C40h
Astron40h
Water Resistance
ALT1-C100m
Astron100m
MSRP
ALT1-C$6,150
Astron$2,500

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
43mm
42mm
Thickness
16mm
12.4mm
Lug-to-Lug
49.5mm
Lug Width
22mm
14mm
Material
316L Stainless Steel
Titanium

Crystal & Dial

3 specs
AR Coating
Inner
Super-clear coating
Dial Color
Regular length (15cm - 19cm wrist size)
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
$6,150
$2,500

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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 ALT1-C

Owners widely praise the Bremont ALT1-C for its flawless brushed case finish, attractive cream dial with excellent contrast from anthracite sub-dials, and comfortable, balanced wearability. The watch features a well-finished strap and a movement that is a joy to wind, with precise chronograph operation. Reviewers note refined feuille hands and polished Arabic numerals with a golden tinge, balancing ruggedness with elegance. The Bremont ALT1-C averages +3 seconds per day, though one reviewer flags its 16mm height as less than ideal for under-cuff wear and describes the date window as narrow. The modified Valjoux 7750 movement's rotor spin is noticeable. Overall, owners rate the Bremont ALT1-C highly for its refined aesthetics and enjoyable user experience.

Seiko Astron

Owners widely praise the Seiko Astron for its spectacular technology, solar-powered quartz movement, and GPS time synchronization, making it a convenient grab-and-go option. The watch is frequently noted for its comfortable and lightweight titanium build, with some models featuring well-finished cases and robust ceramic bezels. Reviewers and owners alike highlight the dial's dynamic and shiny appearance, with textured hour markers and high-contrast edges. Accuracy is generally considered good, with figures ranging from +/- 15 seconds per month to within 1/2 second per day, easily corrected by GPS signal. However, some owners note that DST requires manual adjustment and that automatic time syncing depends on proximity to radio wave towers. The price point is a concern for some, who feel it competes with luxury watches without the same aesthetic appeal. One owner pointed out minimal lume and a slight misalignment of the minute hand on their model.

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