Side by side

Bremont Supermarine 300MvsStudio Underd0g Steffany Blue

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Steffany Blue
Studio Underd0gSteffany Blue
MSRP $800

At a glance

10 of 29 specs differ
Diameter
Supermarine 300M40mm
Steffany Blue39.5mm
Power Reserve
Supermarine 300M40h
Steffany Blue40h
Water Resistance
Supermarine 300M300m
Steffany Blue
MSRP
Supermarine 300M$3,550
Steffany Blue$800

Full specifications

Case

6 specs
Category
Diver
Casual
Diameter
40mm
39.5mm
Thickness
12mm
Lug Width
20mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m

Crystal & Dial

1 specs
Dial Color
Green
Blue

Movement

2 specs
Caliber
BE-92AE
Type
Automatic
Manual

Pricing

1 specs
MSRP
$3,550
$800

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Bremont Supermarine 300M

The Bremont Supermarine 300M is praised for its comfortable 40mm and 42mm case sizes, with owners noting the 42mm wears well on smaller wrists due to its lug design. One owner highlights the 13mm thinness of the 40mm case, considered compact for a 300m diver. The watch is priced at $1375. On balance, owners and reviewers appreciate the Bremont Supermarine 300M for its wearability and compact dimensions, especially for a dive watch.

Studio Underd0g Steffany Blue

Owners widely praise the Studio Underd0g Steffany Blue for its beautiful multilayer dial with a floating effect and vivid Super-LumiNova, with one owner finding it smaller and more beautiful than expected. The 37mm case wears nicely, though some find it slightly small for larger wrists. One owner notes the power reserve can fall short of the advertised 48 hours, sometimes lasting only about a day. Overall, owners rate the Studio Underd0g Steffany Blue highly for its striking dial and luminous display.

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