Side by side

Grand Seiko SBGY007vsSeiko King Seiko KSK

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

SBGY007
Grand SeikoSBGY007
MSRP $8,900
King Seiko KSK
SeikoKing Seiko KSK
MSRP $1,900

At a glance

11 of 29 specs differ
Diameter
SBGY00738.5mm
King Seiko KSK36.1mm
Power Reserve
SBGY00772h
King Seiko KSK72h
Water Resistance
SBGY00730m
King Seiko KSK100m
MSRP
SBGY007$8,900
King Seiko KSK$1,900

Full specifications

Case

4 specs
Diameter
38.5mm
36.1mm
Thickness
10.2mm
11.6mm
Lug-to-Lug
43.7mm
43mm
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

3 specs
Caliber
9R31
6R51
Type
Spring Drive
Automatic
Jewels
25
24

Pricing

1 specs
MSRP
$8,900
$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 SBGY007

Grand Seiko SBGY007 owners and reviewers widely praise its stunning, textured blue dial, inspired by frozen Lake Suwa, and its clean, time-only aesthetic. The watch is lauded for its impeccable finishing, including high polish and Zaratsu polishing, and its classic, thin 38.5mm stainless steel dress case. The hand-wound Spring Drive Caliber 9R31 movement is noted for its accuracy, rated to ±1 second per day, and a 72-hour power reserve, with its power reserve indicator discreetly placed on the case back. While some reviewers suggest room for improvement in Grand Seiko's pricing structure, the $8,300 USD price is seen by others as a relatively affordable entry into the brand's high-end offerings. On balance, the consensus is that the Grand Seiko SBGY007 is highly regarded for its exceptional dial artistry and refined finishing at its price point.

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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