Side by side

Grand Seiko SBGM221vsSugess Seestern S456 GMT

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

SBGM221
Grand SeikoSBGM221
MSRP $5,400
Seestern S456 GMT
SugessSeestern S456 GMT
MSRP $299

At a glance

12 of 29 specs differ
Diameter
SBGM22139.5mm
Seestern S456 GMT40mm
Power Reserve
SBGM22172h
Seestern S456 GMT40h
Water Resistance
SBGM22130m
Seestern S456 GMT200m
MSRP
SBGM221$5,400
Seestern S456 GMT$299

Full specifications

Case

5 specs
Diameter
39.5mm
40mm
Thickness
13.7mm
13mm
Lug-to-Lug
46.9mm
48.8mm
Lug Width
19mm
20mm
Water Resistance
30m
200m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Black
Blue
Lume
None
Tritium

Movement

3 specs
Caliber
9S66
NH34
Power Reserve
72h
40h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$5,400
$299

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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 S456 GMT

Owners widely praise the Sugess Seestern S456 GMT for its excellent case finishing, deep blue sunburst dial, and crisp indices, with one owner rating the overall fit and finish 9.5 out of 10. The watch is noted for its legibility, strong lume that lasts about 4 hours, and accurate timekeeping around -4 seconds per day, with easy GMT hand adjustment. Some owners report issues with a loose or friction-based unidirectional bezel, while others find theirs tight and prefer a bidirectional GMT bezel. The sapphire crystal is described as clear and flat by some, but others find it very reflective with AR coating that could be improved. Sizing is generally considered good at 39mm with a 46mm lug-to-lug and 12mm thickness, though one owner expresses concern about its 49mm lug-to-lug and 41mm bezel diameter. Overall, owners rate the Sugess Seestern S456 GMT highly for its impressive finishing and dial at its price point.

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