Side by side

Bremont Altitude ChronographvsSeiko King Seiko KSK

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

Altitude Chronograph
BremontAltitude Chronograph
MSRP $6,300
King Seiko KSK
SeikoKing Seiko KSK
MSRP $3,300

At a glance

14 of 29 specs differ
Diameter
Altitude Chronograph42mm
King Seiko KSK38.6mm
Power Reserve
Altitude Chronograph40h
King Seiko KSK45h
Water Resistance
Altitude Chronograph100m
King Seiko KSK50m
MSRP
Altitude Chronograph$6,300
King Seiko KSK$3,300

Full specifications

Case

7 specs
Category
Chronograph
Dress
Diameter
42mm
38.6mm
Thickness
14.7mm
10.7mm
Lug-to-Lug
45.8mm
Lug Width
14.7mm
19mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
100m
50m

Crystal & Dial

3 specs
Crystal Shape
Flat
Box
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Silver
Black

Movement

3 specs
Caliber
BE-50AE
6L35
Power Reserve
40h
45h
Jewels
25
26

Pricing

1 specs
MSRP
$6,300
$3,300

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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.

Seiko King Seiko KSK

Owners and reviewers widely praise the King Seiko KSK for its exceptional dial and case finishing, often compared to higher-end brands, and its slim, retro design. The use of the Calibre 6L35 movement in some variants is seen as a significant upgrade, contributing to a refined feel, while others note the bracelet is unusually nice and the case offers a mix of brushed and polished finishes with sharp angles. However, some owners question the value proposition, citing misaligned screws and clasp components on their examples, and the standard 6R movement in some models is criticized as a disappointment for the price point. Accuracy figures range from +15/-10 seconds per day to +5 to +7 seconds per day, and water resistance is rated at 5 BAR or 50 meters. Overall, owners and reviewers find the King Seiko KSK to be a beautiful and classy watch with fantastic finishing, though some are divided on its value and movement choice at its price point.

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