Side by side

Seiko King Seiko KSKvsLongines FLAGSHIP HERITAGE

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

King Seiko KSK
SeikoKing Seiko KSK
MSRP $3,300
FLAGSHIP HERITAGE
LonginesFLAGSHIP HERITAGE
MSRP $2,150

At a glance

17 of 29 specs differ
Diameter
King Seiko KSK38.6mm
FLAGSHIP HERITAGE38.5mm
Power Reserve
King Seiko KSK45h
FLAGSHIP HERITAGE
Water Resistance
King Seiko KSK50m
FLAGSHIP HERITAGE30m
MSRP
King Seiko KSK$3,300
FLAGSHIP HERITAGE$2,150

Full specifications

Case

6 specs
Diameter
38.6mm
38.5mm
Thickness
10.7mm
10.3mm
Lug-to-Lug
45.8mm
47mm
Finish
Brushed and polished
Water Resistance
50m
30m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Box
AR Coating
Anti-reflective coating on inner surface
Dial Color
Black
Anthracite
Indices
Applied

Movement

6 specs
Caliber
6L35
L615.3
Beat Rate
28,800 vph
0 vph
Power Reserve
45h
0h
Jewels
26
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$3,300
$2,150

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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.

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.

Longines FLAGSHIP HERITAGE

The Longines Flagship Heritage is widely praised for its impeccable finishing, timeless vintage-inspired design, and exceptional value, with reviewers highlighting its elegant cream dial with gilt markers, dauphine hands, and applied logo, as well as its comfortable 38.5mm case size. Owners appreciate its refined aesthetic, suitable for dressed occasions and as a first watch, and some note the special design on the case back. However, its 42-hour power reserve and 12.4mm thickness are flagged as drawbacks, with one owner suspecting an issue with the self-winding mechanism. Overall, owners and reviewers rate the Longines Flagship Heritage highly for its elegant vintage design and exceptional value at its price point.

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