Side by side

Bremont ALT1-CvsSeiko Prospex LX line

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

ALT1-C
BremontALT1-C
MSRP $6,150
Prospex LX line
SeikoProspex LX line
MSRP $5,500

At a glance

14 of 29 specs differ
Diameter
ALT1-C43mm
Prospex LX line44.8mm
Power Reserve
ALT1-C40h
Prospex LX line72h
Water Resistance
ALT1-C100m
Prospex LX line200m
MSRP
ALT1-C$6,150
Prospex LX line$5,500

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
43mm
44.8mm
Thickness
16mm
14.7mm
Lug-to-Lug
50.9mm
Material
316L Stainless Steel
Titanium
Water Resistance
100m
200m

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

4 specs
Caliber
BE-50AE
5R66
Type
Automatic
Spring Drive
Power Reserve
40h
72h
Jewels
25
30

Pricing

1 specs
MSRP
$6,150
$5,500

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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 Prospex LX line

Owners widely report the dial's blue-green sunburst is phenomenal, and the sapphire glass features blue AR coating. Some owners feel the high price limits discounts and sales, with one AD noting extremely low sales due to the cost. One owner reported DLC peeling off a two-week-old watch, and another noted quality control issues like bezel inserts and fallen second hands. On balance, owners consider the Seiko Prospex LX line a nicely built watch, though pricing led to poor sales and its discontinuation.

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