Side by side

Grand Seiko SBGM221vsSeiko King Seiko KSK

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

SBGM221
Grand SeikoSBGM221
MSRP $5,400
King Seiko KSK
SeikoKing Seiko KSK
MSRP $3,300

At a glance

11 of 29 specs differ
Diameter
SBGM22139.5mm
King Seiko KSK38.6mm
Power Reserve
SBGM22172h
King Seiko KSK45h
Water Resistance
SBGM22130m
King Seiko KSK50m
MSRP
SBGM221$5,400
King Seiko KSK$3,300

Full specifications

Case

5 specs
Category
GMT
Dress
Diameter
39.5mm
38.6mm
Thickness
13.7mm
10.7mm
Lug-to-Lug
46.9mm
45.8mm
Water Resistance
30m
50m

Crystal & Dial

2 specs
Crystal Shape
Flat
Box
AR Coating
Yes
Anti-reflective coating on inner surface

Movement

3 specs
Caliber
9S66
6L35
Power Reserve
72h
45h
Jewels
25
26

Pricing

1 specs
MSRP
$5,400
$3,300

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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 SBGM221

Grand Seiko SBGM221 is widely praised for its exceptional dial finish, highly polished hands and indices, and elegant design. Owners consistently highlight the stunning craftsmanship, with specific mention of the up to 11 hand-polished facets on its rectangular markers. The reliable 9S66 movement is noted for its 72-hour power reserve and true GMT functionality, tested beyond Chronometer specifications. Some enthusiasts desire a bidirectional 24-hour bezel, which the Grand Seiko SBGM221 lacks, and its 13.7mm thickness and 19mm lug width are noted as potential limitations. On balance, owners rate the Grand Seiko SBGM221 highly for its exquisite finishing and elegant, comfortable design.

From video reviewers

The SBGM221 is praised for its value within the Grand Seiko lineup. The lug width is cited as a weakness.

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.

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