Side by side

Bremont S300vsSeiko King Seiko KSK

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

S300
BremontS300
MSRP $3,795
King Seiko KSK
SeikoKing Seiko KSK
MSRP $3,300

At a glance

13 of 29 specs differ
Diameter
S30040mm
King Seiko KSK38.6mm
Power Reserve
S30040h
King Seiko KSK45h
Water Resistance
S300300m
King Seiko KSK50m
MSRP
S300$3,795
King Seiko KSK$3,300

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
38.6mm
Thickness
10.7mm
Lug-to-Lug
45.8mm
Lug Width
19mm
Water Resistance
300m
50m

Crystal & Dial

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

Movement

3 specs
Caliber
BE-92AE
6L35
Power Reserve
40h
45h
Jewels
25
26

Pricing

1 specs
MSRP
$3,795
$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 S300

Owners widely praise the Bremont S300 for its comfortable 40mm size, fitting well under a cuff, and its appealing dial and bezel color. The winding action is described as smooth, and timekeeping averages +3 seconds per day, with machining noted as being on par with higher-end brands. One owner suggests tapering the bracelet and adding a mixed brushing and polishing finish for improved dress-shirt wearability. However, some find its styling lacks uniqueness compared to competitors, and the approximately 49mm lug-to-lug measurement is considered unusually long and potentially ill-fitting on smaller wrists. Overall, owners rate the Bremont S300 highly for its wearability and finishing at its price point.

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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