Side by side

Bremont Altitude ChronographvsSeiko Prospex Sea

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

Altitude Chronograph
BremontAltitude Chronograph
MSRP $6,300
Prospex Sea
SeikoProspex Sea
MSRP $795
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 Sea

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many appreciating its comfortable wearability due to its case shape and lug-to-lug distance. Reviewers consistently highlight its impressive finishing and classic dive watch design, often noting the bright LumiBrite lume. Some owners find the watch to be large, thick, and heavy, while others consider it the perfect size, indicating a split opinion on wearability for smaller wrists. The power reserve from some movements is noted as less than newer variants, and the clasp quality receives mixed feedback. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional finishing and value proposition in the dive watch market.

At a glance

13 of 29 specs differ
Diameter
Altitude Chronograph42mm
Prospex Sea34mm
Power Reserve
Altitude Chronograph40h
Prospex Sea40h
Water Resistance
Altitude Chronograph100m
Prospex Sea200m
MSRP
Altitude Chronograph$6,300
Prospex Sea$795

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
42mm
34mm
Thickness
14.7mm
8.7mm
Lug-to-Lug
40.8mm
Lug Width
14.7mm
16mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

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

Movement

2 specs
Caliber
BE-50AE
6N01
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$6,300
$795
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