Side by side

Borealis Watch Co. Sea Storm MK2 GMTvsTudor Black Bay Bronze

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

Sea Storm MK2 GMT
Borealis Watch Co.Sea Storm MK2 GMT
MSRP $415
Black Bay Bronze
TudorBlack Bay Bronze
MSRP $5,425

At a glance

20 of 29 specs differ
Diameter
Sea Storm MK2 GMT41.50mm
Black Bay Bronze43mm
Power Reserve
Sea Storm MK2 GMT40h
Black Bay Bronze70h
Water Resistance
Sea Storm MK2 GMT300m
Black Bay Bronze200m
MSRP
Sea Storm MK2 GMT$415
Black Bay Bronze$5,425

Full specifications

Case

8 specs
Diameter
41.50mm
43mm
Thickness
14.15mm
14.6mm
Lug-to-Lug
48.50mm
46mm
Lug Width
20mm
23mm
Material
Stainless Steel
Bronze
Finish
Brushed and polished
Satin
Water Resistance
300m
200m
Caseback
Solid
Engraved

Crystal & Dial

5 specs
Crystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Black
Grey
Indices
Applied
—
Lume
BGW9
None

Movement

6 specs
Caliber
NH34
MT5601
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$415
$5,425

Follow this matchup

Get a note when Borealis Watch Co. Sea Storm MK2 GMT vs Tudor Black Bay Bronze gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring

More watches worth a look

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

Christopher Ward C60 Lympstone
Christopher Wardmicro

C60 Lympstone

6 watches · 9 variantsC60
40mm·Automatic·600m WR
$1,615MSRP
—Used
Islander Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323
Islandermicro
Under $50

Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323

9 watches · 9 variantsUnder $50
42mm·Automatic·200m WR
$449MSRP
—Used
Boldr Marine
Boldrmicro

Marine

2 variantsRef. marine-elewana
40mm·Automatic·200m WR
$439MSRP
—Used
Geckota Phalanx
Geckotamicro

Phalanx

8 variantsPhalanx
42mm·Automatic·300m WR
$349MSRP
—Used
Islander Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62
Islandermicro
Dive Watches Guide

Islander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62

7 watches · 7 variantsDive Watches Guide
42mm·Automatic·200m WR
$420MSRP
—Used
Baltic Aquascaphe Titanium
Balticmicro

Aquascaphe Titanium

2 variantsAquascaphe Titanium
41mm·Automatic·300m WR
$788MSRP
—Used
Borealis Watch Co. Neptuno
Borealis Watch Co.micro

Neptuno

Ref. borealis-neptuno-red-fade-to-black-dial-no-date-nh38-automatic-movement-300m-diver-watch
40.00mm·Automatic·300m WR
$390MSRP
—Used
Magrette Vantage
Magrettemicro

Vantage

2 variantsRef. vantage-bronze-exdemo
44mm·Automatic·500m WR
—MSRP
—Used
All alternatives to the Sea Storm MK2 GMT →All alternatives to the Black Bay Bronze →
Explore the full catalog
Adjacent matchups

People also compared

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

Borealis Watch Co. Sea Storm MK2vsTudor Black Bay BronzeChristopher Ward C60 LympstonevsTudor Black Bay BronzeBoldr MarinevsTudor Black Bay BronzeGeckota PhalanxvsTudor Black Bay BronzeBorealis Watch Co. Sea Storm MK2 GMTvsIslander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323Borealis Watch Co. Sea Storm MK2 GMTvsGeckota Phalanx
Edit this comparisonAdd another watchMore diver comparisonsBest Diver Watches Under $500