Which is cheaper, the Bremont Altitude 39 Date or the Seiko King Seiko KSK?

At MSRP the Seiko King Seiko KSK is the cheaper of the two at $3,300, against $4,250 for the Bremont Altitude 39 Date — a $950 gap before any retailer discounting.

Which is bigger, the Bremont Altitude 39 Date or the Seiko King Seiko KSK?

The Bremont Altitude 39 Date wears larger at 39mm versus 38.6mm for the Seiko King Seiko KSK — a 0.4mm difference across the dial.

Which has better water resistance, the Bremont Altitude 39 Date or the Seiko King Seiko KSK?

The Bremont Altitude 39 Date is rated to 100m versus 5m for the Seiko King Seiko KSK.

Which has a longer power reserve, the Bremont Altitude 39 Date or the Seiko King Seiko KSK?

The Seiko King Seiko KSK carries a 45-hour power reserve against 40 hours on the Bremont Altitude 39 Date.

What movement does the Bremont Altitude 39 Date run compared to the Seiko King Seiko KSK?

Both watches run automatic movements — the Bremont Altitude 39 Date uses the BE-92AE and the Seiko King Seiko KSK uses the 6L35.

Side by side

Bremont Altitude 39 DatevsSeiko King Seiko KSK

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

Bremont Altitude 39 Date

alt39-dt-ss-si-l-s

MSRP $4,250

Seiko King Seiko KSK

sje089j1

MSRP $3,300

At a glance

14 of 29 specs differ

Diameter

Altitude 39 Date39mm

King Seiko KSK38.6mm

Power Reserve

Altitude 39 Date40h

King Seiko KSK45h

Water Resistance

Altitude 39 Date100m

King Seiko KSK50m

MSRP

Altitude 39 Date$4,250

King Seiko KSK$3,300

Full specifications

Case

7 specs

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-92AE

6L35

Power Reserve

40h

45h

Jewels

Pricing

1 specs

MSRP

$4,250

$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 39 Date

Owners and reviewers widely praise the Bremont Altitude 39 Date as a sleek, legible, and everyday-suited pilot's watch, noting its comfortable 39mm 904L steel case and clean dial design. The La Joux-Perret G100 movement is recognized for its 68-hour power reserve and smooth winding feel. Some owners note the bracelet lacks micro-adjustments. On balance, the consensus is that the Bremont Altitude 39 Date is highly regarded for its refined finishing and wearability at 39mm.

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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