Side by side

Bremont Supermarine 300MvsSheffield GMT

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
GMT
SheffieldGMT
Buy from Bremont ↗
Buy used on eBay ↗
Buy from Sheffield ↗
Buy used on eBay ↗

At a glance

9 of 29 specs differ
Diameter
Supermarine 300M40mm
GMT40mm
Power Reserve
Supermarine 300M40h
GMT—
Water Resistance
Supermarine 300M300m
GMT200m
MSRP
Supermarine 300M$3,550
GMT—

Full specifications

Case

5 specs
Category
Diver
GMT
Thickness
12mm
13mm
Lug-to-Lug
—
48mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
Green
Blue

Movement

2 specs
Caliber
BE-92AE
Seiko NH34
Power Reserve
40h
—

Pricing

1 specs
MSRP
$3,550
—
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