Side by side

Bremont S302vsGrand Seiko SBGM221

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

S302
BremontS302
MSRP $3,900
SBGM221
Grand SeikoSBGM221
MSRP $5,400

At a glance

12 of 29 specs differ
Diameter
S30240mm
SBGM22139.5mm
Power Reserve
S30240h
SBGM22172h
Water Resistance
S302300m
SBGM22130m
MSRP
S302$3,900
SBGM221$5,400

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40mm
39.5mm
Thickness
13mm
13.7mm
Lug-to-Lug
46.9mm
Lug Width
20mm
19mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
30m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Blue
Black

Movement

2 specs
Caliber
BE-92AE
9S66
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$3,900
$5,400

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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.

Bremont S302

Owners widely praise the Bremont S302 for its balanced 40mm proportions, legible matte dial with attractive tan accents, and satisfying bezel action, with one owner noting its hard, scratch-resistant case. Reviewers highlight its 300m water resistance and GMT function, though some find the bezel integration a compromise and the GMT hand adjustment limited. Accuracy figures vary, with one owner reporting theirs keeps accurate time and another noting potential alignment issues requiring service. The ETA movement at its price point is considered high by some reviewers. Overall, owners and reviewers appreciate the Bremont S302 as a handsome and functional dive-style GMT, with its comfortable lug design and subtle appeal being key strengths.

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.

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