Which is cheaper, the Bremont Altitude Chronograph or the Seiko Prospex SPEEDTIMER?

At MSRP the Seiko Prospex SPEEDTIMER is the cheaper of the two at $3,000, against $6,300 for the Bremont Altitude Chronograph — a $3,300 gap before any retailer discounting.

Which is bigger, the Bremont Altitude Chronograph or the Seiko Prospex SPEEDTIMER?

The Seiko Prospex SPEEDTIMER wears larger at 42.5mm versus 42mm for the Bremont Altitude Chronograph — a 0.5mm difference across the dial.

Which has better water resistance, the Bremont Altitude Chronograph or the Seiko Prospex SPEEDTIMER?

The Bremont Altitude Chronograph is rated to 100m versus 10m for the Seiko Prospex SPEEDTIMER.

Which has a longer power reserve, the Bremont Altitude Chronograph or the Seiko Prospex SPEEDTIMER?

The Seiko Prospex SPEEDTIMER carries a 45-hour power reserve against 40 hours on the Bremont Altitude Chronograph.

What movement does the Bremont Altitude Chronograph run compared to the Seiko Prospex SPEEDTIMER?

Both watches run automatic movements — the Bremont Altitude Chronograph uses the BE-50AE and the Seiko Prospex SPEEDTIMER uses the 8R46.

Side by side

Bremont Altitude ChronographvsSeiko Prospex SPEEDTIMER

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

Bremont Altitude Chronograph

alt42-chr-g-ss-si-l-s

MSRP $6,300

Seiko Prospex SPEEDTIMER

srq037j1

MSRP $3,000

At a glance

13 of 29 specs differ

Diameter

Altitude Chronograph42mm

Prospex SPEEDTIMER42.5mm

Power Reserve

Altitude Chronograph40h

Prospex SPEEDTIMER45h

Water Resistance

Altitude Chronograph100m

Prospex SPEEDTIMER100m

MSRP

Altitude Chronograph$6,300

Prospex SPEEDTIMER$3,000

Full specifications

Case

5 specs

Diameter

42mm

42.5mm

Thickness

14.7mm

15.1mm

Lug-to-Lug

—

50mm

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

8R46

Power Reserve

40h

45h

Jewels

Pricing

1 specs

MSRP

$6,300

$3,000

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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.

A Blog to Watch

WatchUSeek

Seiko Prospex SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER for its attractive vintage-inspired design and compact 39mm size, with one owner finding the red dial unique and gorgeous. Reviewers and owners note the solar-powered quartz movement, with one owner considering $700 expensive for this specification and another wishing for a thinner case. The SPEEDTIMER is described as a sturdy and reliable everyday watch, though one owner questioned its resale value. Overall, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER for its stylish, compact design and solar functionality, despite some finding the price point and case thickness slightly high.

Reddit·4

Time + Tide

Fratello

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