Side by side

Grand Seiko SBGM221vsSugess Seestern S446 GMT

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

SBGM221
Grand SeikoSBGM221
MSRP $5,400
Seestern S446 GMT
SugessSeestern S446 GMT
MSRP $269

At a glance

11 of 29 specs differ
Diameter
SBGM22139.5mm
Seestern S446 GMT40mm
Power Reserve
SBGM22172h
Seestern S446 GMT41h
Water Resistance
SBGM22130m
Seestern S446 GMT100m
MSRP
SBGM221$5,400
Seestern S446 GMT$269

Full specifications

Case

4 specs
Diameter
39.5mm
40mm
Thickness
13.7mm
10mm
Lug-to-Lug
46.9mm
47mm
Water Resistance
30m
100m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Lume
None
Tritium

Movement

4 specs
Caliber
9S66
Seiko NH34
Beat Rate
28,800 vph
3 vph
Power Reserve
72h
41h
Complications
None
GMT, Moonphase, Date

Pricing

1 specs
MSRP
$5,400
$269

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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 Seestern S446 GMT

Owners widely praise the Sugess Seestern S446 GMT for its outstanding finishing and materials at its price point, with specific mentions of the cream or ivory dial, polished hands, and clear crystal offering superb legibility. Accuracy is generally good, with one owner reporting +2/3 seconds per day from the Seiko NH34A movement. Some owners find the lume is not a strong point, and the bracelet clasp could benefit from more micro-adjustment, with screw pins noted as cheap. The GMT hand is described as flat by some, and opinions are split on the "Sugess" versus "Seestern" logo. Overall, owners rate the Sugess Seestern S446 GMT highly for its beautiful dial and excellent build quality for the price.

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