Side by side

Seiko King Seiko KSKvsLongines SPIRIT

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
SPIRIT
LonginesSPIRIT
MSRP $2,850

At a glance

20 of 29 specs differ
Diameter
King Seiko KSK38.6mm
SPIRIT37mm
Power Reserve
King Seiko KSK45h
SPIRIT72h
Water Resistance
King Seiko KSK50m
SPIRIT100m
MSRP
King Seiko KSK$3,300
SPIRIT$2,850

Full specifications

Case

7 specs
Category
Dress
Diameter
38.6mm
37mm
Thickness
10.7mm
11.7mm
Lug-to-Lug
45.8mm
44.8mm
Finish
Brushed and polished
Water Resistance
50m
100m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Box
AR Coating
Anti-reflective coating on inner surface
Both sides
Dial Color
Black
Ivory
Indices
Applied
Applied Arabic numerals
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
6L35
L888.4
Beat Rate
28,800 vph
25,200 vph
Power Reserve
45h
72h
Jewels
26
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$3,300
$2,850

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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 SPIRIT

Owners and reviewers widely praise the Longines Spirit for its exceptional finishing, refined vintage-inspired design, and strong value proposition, with many finding the 37mm and 40mm variants to be a "sweet-spot" size for wearability. The champagne dial with applied indices on the 37mm model is noted for its depth and legibility, while the L688.4 movement in the Chronograph is appreciated for its COSC certification and silicon balance spring. Some owners report accuracy within COSC specifications, and the 72-hour power reserve is a frequently cited positive. However, some community members find the bracelet finishing and end links less refined than competitors, and one owner noted the presence of three different fonts on the dial numbers of the 37mm. The 37mm model's non-screw-down crown despite 100m water resistance and the lume strength are also flagged as potential drawbacks by some.

From video reviewers

The Longines Spirit's reliable COSC-certified movement, Caliber L888.4, with a 72-hour power reserve and a silicone balance spring, is a notable strength. A potential weakness is the watch's relatively high price point compared to its competitors, making it a drawback for some. Reviewers disagree on whether the dial colour shift is a notable feature, with some appreciating it and others not mentioning it as a point of contention.

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