Side by side

Bremont Altitude ChronographvsSeiko Prospex SPEEDTIMER Mechanical Chronograph

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

Altitude Chronograph
BremontAltitude Chronograph
MSRP $6,300

At a glance

12 of 29 specs differ
Diameter
Altitude Chronograph42mm
Prospex SPEEDTIMER Mechanical Chronograph42mm
Power Reserve
Altitude Chronograph40h
Prospex SPEEDTIMER Mechanical Chronograph45h
Water Resistance
Altitude Chronograph100m
Prospex SPEEDTIMER Mechanical Chronograph100m
MSRP
Altitude Chronograph$6,300
Prospex SPEEDTIMER Mechanical Chronograph$2,500

Full specifications

Case

4 specs
Thickness
14.7mm
14.6mm
Lug-to-Lug
49.5mm
Lug Width
14.7mm
20mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Silver
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
BE-50AE
8R48
Power Reserve
40h
45h
Jewels
25
34

Pricing

1 specs
MSRP
$6,300
$2,500

Follow this matchup

Get a note when Bremont Altitude Chronograph vs Seiko Prospex SPEEDTIMER Mechanical Chronograph gets more votes, a community discussion, or a price drop. No account needed.

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 Prospex SPEEDTIMER Mechanical Chronograph

The Seiko Prospex SPEEDTIMER Mechanical Chronograph is praised for its handsome, heritage-inspired design with a clean, balanced dial and an external tachymeter bezel. Reviewers highlight the upgraded case and bracelet, noting improved comfort and good value for a well-designed chronograph with an in-house movement. The caliber 8R48 movement features a vertical clutch and column wheel with MEMS technology for durability and precision. Points to consider include the 4:30 date window and a 14.6mm thickness, while the 45-hour power reserve is noted as an area for potential improvement. On balance, reviewers find the Seiko Prospex SPEEDTIMER Mechanical Chronograph to be a solid offering with good value, particularly for its design and in-house movement.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.