Side by side

Grand Seiko SBGM221vsSugess Tourbillon Master SU8230

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

SBGM221
Grand SeikoSBGM221
MSRP $5,400
Tourbillon Master SU8230
SugessTourbillon Master SU8230
MSRP $1,399

At a glance

14 of 29 specs differ
Diameter
SBGM22139.5mm
Tourbillon Master SU823041mm
Power Reserve
SBGM22172h
Tourbillon Master SU823040h
Water Resistance
SBGM22130m
Tourbillon Master SU823050m
MSRP
SBGM221$5,400
Tourbillon Master SU8230$1,399

Full specifications

Case

8 specs
Category
GMT
Chronograph
Diameter
39.5mm
41mm
Thickness
13.7mm
11mm
Lug-to-Lug
46.9mm
46mm
Lug Width
19mm
11mm
Material
Stainless Steel
Yellow Gold/Rose Gold/Bronze
Water Resistance
30m
50m
Caseback
Solid
Display

Crystal & Dial

1 specs
AR Coating
Yes
Inner

Movement

4 specs
Caliber
9S66
Seagull ST8230
Beat Rate
28,800 vph
3 vph
Power Reserve
72h
40h
Complications
None
GMT, Moonphase, Date

Pricing

1 specs
MSRP
$5,400
$1,399

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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.

Sugess Tourbillon Master SU8230

Owners widely praise the Sugess Tourbillon Master for its stunning enamel dial and impressive finishing at its price point. Accuracy figures vary, with one owner reporting -12s/day and another +6 to +11s/day. Caveats include a cumbersome winding crown, limited 50m water resistance, a 21mm lug width, and a non-hacking movement, with one owner noting a power reserve around two days and noticeable resistance when winding. On balance, owners rate the Sugess Tourbillon Master highly for its visually striking dial and finishing, which significantly elevates its perceived value.

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