Side by side

Grand Seiko SBGM221vsSpinnaker Bradner GMT

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

SBGM221
Grand SeikoSBGM221
MSRP $5,400
Bradner GMT
SpinnakerBradner GMT
MSRP $299

At a glance

11 of 29 specs differ
Diameter
SBGM22139.5mm
Bradner GMT42mm
Power Reserve
SBGM22172h
Bradner GMT40h
Water Resistance
SBGM22130m
Bradner GMT180m
MSRP
SBGM221$5,400
Bradner GMT$299

Full specifications

Case

6 specs
Diameter
39.5mm
42mm
Thickness
13.7mm
15mm
Lug-to-Lug
46.9mm
50mm
Lug Width
19mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
30m
180m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Brown

Movement

2 specs
Caliber
9S66
Seiko NH34A
Power Reserve
72h
40h

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.

Spinnaker Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

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