Side by side

Bremont Supermarine 300MvsGrand Seiko SBGA211

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
SBGA211
Grand SeikoSBGA211
MSRP $6,900
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Bremont Supermarine 300M

The Bremont Supermarine 300M is praised for its comfortable 40mm and 42mm case sizes, with owners noting the 42mm wears well on smaller wrists due to its lug design. One owner highlights the 13mm thinness of the 40mm case, considered compact for a 300m diver. The watch is priced at $1375. On balance, owners and reviewers appreciate the Bremont Supermarine 300M for its wearability and compact dimensions, especially for a dive watch.

Grand Seiko SBGA211

Grand Seiko SBGA211 owners and reviewers widely praise its exceptional finishing, particularly the Zaratsu polishing, and its mesmerizing, textured dial. The Spring Drive movement is consistently highlighted as a technical masterpiece, offering quartz-like accuracy of +/- 1 second per day and a smooth seconds sweep. Its lightweight titanium construction and 41mm case size contribute to a comfortable and wearable design. However, some owners find the dial texture less captivating in person than in photos, and there are mixed opinions on the bracelet's adjustment system and perceived quality relative to the price. Some also note its thickness and lack of lume. Overall, owners and reviewers rate the Grand Seiko SBGA211 highly for its unique dial and superb finishing, making it a highly regarded icon.

At a glance

12 of 29 specs differ
Diameter
Supermarine 300M40mm
SBGA21141mm
Power Reserve
Supermarine 300M40h
SBGA21172h
Water Resistance
Supermarine 300M300m
SBGA211100m
MSRP
Supermarine 300M$3,550
SBGA211$6,900

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
41mm
Thickness
12mm
12.5mm
Lug-to-Lug
49mm
Material
904L Stainless Steel
Titanium
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Green
Black

Movement

3 specs
Caliber
BE-92AE
9R65
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$3,550
$6,900

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