Side by side

Bremont Supermarine 300MvsMKII Key West

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

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Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Key West
MKIIKey West
MSRP $1,694
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At a glance

9 of 29 specs differ
Diameter
Supermarine 300M40mm
Key West40mm
Power Reserve
Supermarine 300M40h
Key West—
Water Resistance
Supermarine 300M300m
Key West200m
MSRP
Supermarine 300M$3,550
Key West$1,694

Full specifications

Case

5 specs
Category
Diver
—
Thickness
12mm
—
Lug Width
20mm
—
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
Green
Black

Movement

2 specs
Caliber
BE-92AE
ETA 2893-2
Power Reserve
40h
—

Pricing

1 specs
MSRP
$3,550
—
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