Side by side

Bremont Supermarine 300MvsGrand Seiko STGK007

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
STGK007
Grand SeikoSTGK007
MSRP $6,200

At a glance

12 of 29 specs differ
Diameter
Supermarine 300M40mm
STGK00727.8mm
Power Reserve
Supermarine 300M40h
STGK00750h
Water Resistance
Supermarine 300M300m
STGK007100m
MSRP
Supermarine 300M$3,550
STGK007$6,200

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
40mm
27.8mm
Thickness
12mm
11.2mm
Lug-to-Lug
—
33.5mm
Lug Width
20mm
13mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Green
Black

Movement

2 specs
Caliber
BE-92AE
9S27
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$3,550
$6,200

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