Side by side

Grand Seiko SLGW007vsSeiko King Seiko KSK

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

SLGW007
Grand SeikoSLGW007
MSRP $10,000
King Seiko KSK
SeikoKing Seiko KSK
MSRP $2,000

At a glance

13 of 29 specs differ
Diameter
SLGW00738.6mm
King Seiko KSK38.3mm
Power Reserve
SLGW00780h
King Seiko KSK72h
Water Resistance
SLGW00730m
King Seiko KSK100m
MSRP
SLGW007$10,000
King Seiko KSK$2,000

Full specifications

Case

5 specs
Diameter
38.6mm
38.3mm
Thickness
9.95mm
11.7mm
Lug-to-Lug
45mm
46mm
Lug Width
20mm
19mm
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
$10,000
$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 SLGW007

Grand Seiko SLGW007 owners and reviewers praise its compact 38.6mm x 9.95mm Evolution 9 case and the textured "Moonlit Birch" dial, described as moody, elegant, and captivating. The technically credible 9SA4 hand-wound movement with an 80-hour power reserve is also highlighted. Its 30m water resistance and lack of lume are noted as appropriate for a dress watch. Overall, owners and reviewers rate the Grand Seiko SLGW007 highly for its refined case, captivating dial, and updated movement.

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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