Side by side

Seiko King Seiko KSKvsLongines FLAGSHIP CLASSIC

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 CLASSIC
LonginesFLAGSHIP CLASSIC
MSRP $2,450

At a glance

18 of 29 specs differ
Diameter
King Seiko KSK38.6mm
FLAGSHIP CLASSIC30mm
Power Reserve
King Seiko KSK45h
FLAGSHIP CLASSIC45h
Water Resistance
King Seiko KSK50m
FLAGSHIP CLASSIC30m
MSRP
King Seiko KSK$3,300
FLAGSHIP CLASSIC$2,450

Full specifications

Case

7 specs
Diameter
38.6mm
30mm
Thickness
10.7mm
8.1mm
Lug-to-Lug
45.8mm
36.4mm
Lug Width
19mm
15mm
Finish
Brushed and polished
Water Resistance
50m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Box
AR Coating
Anti-reflective coating on inner surface
Underside
Dial Color
Black
Brown
Indices
Applied
Diamond indexes
Lume
None
Super-LumiNova

Movement

5 specs
Caliber
6L35
L592.5
Jewels
26
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$3,300
$2,450

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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 CLASSIC

Owners widely praise the Longines FLAGSHIP CLASSIC for its vintage-inspired design, impressive finishing, and value, with many appreciating its classic aesthetic and sharp rendition of a traditional look. The 38.5mm size is frequently cited as a positive for those seeking a more traditional fit, and the "rice grain" bracelet and color are noted as versatile. Some owners find the watch lacks personality compared to other options, and one reviewer points out its 12.4mm thickness can prevent it from easily slipping under a cuff. On balance, owners and reviewers rate the Longines FLAGSHIP CLASSIC highly for its well-executed classic design and strong value proposition.

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