Side by side

Grand Seiko SLGW003vsSeiko King Seiko KSK

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

SLGW003
Grand SeikoSLGW003
MSRP $11,600
King Seiko KSK
SeikoKing Seiko KSK
MSRP $2,000

At a glance

14 of 29 specs differ
Diameter
SLGW00338.6mm
King Seiko KSK38.3mm
Power Reserve
SLGW00380h
King Seiko KSK72h
Water Resistance
SLGW00330m
King Seiko KSK100m
MSRP
SLGW003$11,600
King Seiko KSK$2,000

Full specifications

Case

6 specs
Diameter
38.6mm
38.3mm
Thickness
9.95mm
11.7mm
Lug-to-Lug
45mm
46mm
Lug Width
20mm
19mm
Material
Titanium
Stainless Steel
Water Resistance
30m
100m

Crystal & Dial

3 specs
Crystal Shape
Flat
Box
AR Coating
Yes
Anti-reflective coating on inner surface
Lume
None
LumiBrite on Hands

Movement

4 specs
Caliber
9SA4
6R55
Type
Manual
Automatic
Power Reserve
80h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$11,600
$2,000

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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.

Grand Seiko SLGW003

The Grand Seiko SLGW003 is praised for its comfortable, lightweight Brilliant Hard Titanium case, meticulous finishing, and a clean, modern dial. Reviewers highlight the new 9SA4 manual-wind movement, noting its attractive finishing, 80-hour power reserve, and accuracy of -3/+5 seconds per day. It is considered a versatile dress watch blending vintage and future Grand Seiko spirit. The €11,700 price is noted as expensive, with some questioning its value. Overall, reviewers rate the Grand Seiko SLGW003 highly for its elegant design and impressive manual-wind movement at its flagship price point.

From video reviewers

The slim profile of the Evolution 9 case is a key strength. Water resistance is a weakness, with figures of 50 meters and 30 meters cited. Reviewers disagree on whether the manual-wind Hi-Beat movement is a rarity or a notable addition.

Seiko King Seiko KSK

Owners and reviewers widely praise the King Seiko KSK's sharp, faceted case design and harmonious mid-century aesthetic. Its compact 38.1mm or 37mm size and slim 10.7mm thickness are noted as highly wearable. However, accuracy is a point of contention, with one reviewer reporting a wide range of +25 to -15 seconds per day for the 6R31 movement, while others criticize the standard 6R movement as too thick and a departure from the brand's history. Water resistance is consistently cited as limited to 50 meters, and one owner reported misaligned screws on the caseback and clasp. On balance, owners and reviewers find the King Seiko KSK appealing for its design and wearability, though the movement choice and accuracy are significant drawbacks for some.

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