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 $1,900

At a glance

13 of 29 specs differ
Diameter
SLGW00738.6mm
King Seiko KSK36.1mm
Power Reserve
SLGW00780h
King Seiko KSK72h
Water Resistance
SLGW00730m
King Seiko KSK100m
MSRP
SLGW007$10,000
King Seiko KSK$1,900

Full specifications

Case

5 specs
Diameter
38.6mm
36.1mm
Thickness
9.95mm
11.6mm
Lug-to-Lug
45mm
43mm
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 and index(es)

Movement

4 specs
Caliber
9SA4
6R51
Type
Manual
Automatic
Power Reserve
80h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$10,000
$1,900

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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

The King Seiko KSK is widely praised for its refined finishing, with owners and reviewers noting its sharp case, faceted lugs, and well-executed dial indices, often comparing its polishing favorably to Grand Seiko. Enthusiasts appreciate its slim, retro design, with some stating it wears smaller than its official size due to the cushion case and close-to-the-wrist feel. The use of the slimline Calibre 6L35 movement is seen as an upgrade, maintaining the watch's slender profile, though some owners express concern over the price point and the perceived value of the movement. Accuracy figures vary, with one owner reporting +5 to +7 seconds per day, while another notes +15/-10 seconds per day. Some owners have noted minor quality control issues such as misaligned screws or a burr on a hand. On balance, owners and reviewers rate the King Seiko KSK highly for its exceptional case and dial finishing at its price point.

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