Side by side

Bremont Supermarine 300MvsGrand Seiko SBGD201

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
SBGD201
Grand SeikoSBGD201

At a glance

13 of 29 specs differ
Diameter
Supermarine 300M40mm
SBGD20143mm
Power Reserve
Supermarine 300M40h
SBGD201192h
Water Resistance
Supermarine 300M300m
SBGD201100m
MSRP
Supermarine 300M$3,550
SBGD201

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
40mm
43mm
Thickness
12mm
13.2mm
Lug-to-Lug
51.8mm
Lug Width
20mm
22mm
Material
904L Stainless Steel
Platinum
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Green
Black

Movement

3 specs
Caliber
BE-92AE
9R01
Type
Automatic
Spring Drive
Power Reserve
40h
192h

Pricing

1 specs
MSRP
$3,550

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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 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 SBGD201

Grand Seiko SBGD201 owners and reviewers praise its stellar platinum case with Zaratsu polishing and diamond-dust dial, with one reviewer calling it the most beautiful Grand Seiko they have seen. Its Spring Drive caliber 9R01 movement offers an 8-day power reserve from three barrels. While some find the 43mm size too large for its design, others find the 168-gram platinum case comfortable despite its heft. Some community members note the movement finishing is simplistic for its price point and would prefer the artistic finesse of higher-end alternatives. On balance, enthusiasts and reviewers highly regard the Grand Seiko SBGD201 for its exquisite finishing and impressive technical specifications at its price.

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