Borealis Watch Co. Sea Storm MK2vsBremont Supermarine 300M

Add a watch
Sea Storm MK2
Borealis Watch Co.Sea Storm MK2

MSRP $475

See the full watch
Buy from Borealis Watch Co. Used on eBay
Supermarine 300M
BremontSupermarine 300M

Ref. sm40-nd-ss-gn-b·MSRP $3,550

See the full watch
Buy from Bremont Used on eBay

lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures

Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Borealis Watch Co. Sea Storm MK2 at true scale

Sea Storm MK2

Bremont Supermarine 300M at true scale

Supermarine 300M

Diameter

41.5mm

40mm

Lug-to-Lug

48.5mm

n/a

Thickness

14.2mm

12mm

lowest

Water Resistance

300m

300m

MSRP

$475

lowest

$3,550

Movement

Seiko NH38

Bremont BE-92AE

Case

4 specs
Diameter
41.5mm
40mm
Thickness
14.15mm
12mm
Lug-to-Lug
48.5mm
n/a
Material
Stainless Steel
904L Stainless Steel

Crystal & Dial

2 specs
Dial Color
n/a
Green
Lume
BGW9
None

Movement

1 specs
Caliber
Seiko NH38
Bremont BE-92AE

Pricing

1 specs
MSRP
$475
$3,550
Keep your wishlist and collection together in the appExplore the app
Get the appGet the app

Similar watches

Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.

All alternatives to the Sea Storm MK2 →All alternatives to the Supermarine 300M →
Explore the full catalog
DiscussionNot started

Also compared

Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.

Audaz ADZ-4020vsBremont Supermarine 300MBorealis Watch Co. Sea Storm MK2 GMTvsBremont Supermarine 300MBremont Supermarine 300MvsHemel HD24 AutomaticBremont Supermarine 300MvsSpinnaker Spence 300
Edit this comparisonMore diver comparisonsBest Diver Watches Under $500Explore more 39-43mm watches