Which is cheaper, the Bremont Altitude Chronograph or the Seiko Prospex Sea The Black Series?

At MSRP the Seiko Prospex Sea The Black Series is the cheaper of the two at $765, against $6,300 for the Bremont Altitude Chronograph — a $5,535 gap before any retailer discounting.

Which is bigger, the Bremont Altitude Chronograph or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series wears larger at 45mm versus 42mm for the Bremont Altitude Chronograph — a 3mm difference across the dial.

Which has better water resistance, the Bremont Altitude Chronograph or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series is rated to 200m versus 100m for the Bremont Altitude Chronograph.

Which has a longer power reserve, the Bremont Altitude Chronograph or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series carries a 41-hour power reserve against 40 hours on the Bremont Altitude Chronograph.

What movement does the Bremont Altitude Chronograph run compared to the Seiko Prospex Sea The Black Series?

Both watches run automatic movements — the Bremont Altitude Chronograph uses the BE-50AE and the Seiko Prospex Sea The Black Series uses the 4R36.

Side by side

Bremont Altitude ChronographvsSeiko Prospex Sea The Black Series

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 Sea The Black Series

srpk43

MSRP $765

At a glance

14 of 29 specs differ

Diameter

Altitude Chronograph42mm

Prospex Sea The Black Series45mm

Power Reserve

Altitude Chronograph40h

Prospex Sea The Black Series41h

Water Resistance

Altitude Chronograph100m

Prospex Sea The Black Series200m

MSRP

Altitude Chronograph$6,300

Prospex Sea The Black Series$765

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Silver

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

BE-50AE

4R36

Power Reserve

40h

41h

Jewels

Pricing

1 specs

MSRP

$6,300

$765

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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 Sea The Black Series

The Seiko Prospex Sea The Black Series is widely praised for its impressive value and compelling design elements. Reviewers highlight the SLA073's cave-diving-inspired dial, high-quality bracelet, and the robust 8L35 movement, calling it a standout release. The SRPE33 and SRPE39 models are noted for their attractive price, manta ray decorated dials, and excellent LumiBrite lume, though bezel alignment can be inconsistent. The SNJ029 is celebrated for its dynamic, colorful aesthetic, solar charging, and comfortable strap, making it ideal for outdoor adventures. Overall, the consensus is that Seiko Prospex Sea The Black Series models offer excellent value, with specific models lauded for their unique dials, quality finishing, and practical features like solar charging.

Fratello·2

Hodinkee

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