Side by side
Bremont Supermarine 300MvsGrand Seiko SBGD223
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Supermarine 300M40mm
SBGD22344.5mm
Power Reserve
Supermarine 300M40h
SBGD223192h
Water Resistance
Supermarine 300M300m
SBGD223100m
MSRP
Supermarine 300M$3,550
SBGD223$320,000
Full specifications
Case
7 specsCategory
Diver
Chronograph
Diameter
40mm
44.5mm
Thickness
12mm
14.4mm
Lug-to-Lug
—
52mm
Lug Width
20mm
23mm
Material
904L Stainless Steel
Platinum
Water Resistance
300m
100m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Dial Color
Green
Black
Movement
3 specsCaliber
BE-92AE
9R01
Type
Automatic
Spring Drive
Power Reserve
40h
192h
Pricing
1 specsMSRP
$3,550
$320,000
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