Side by side

Borealis Watch Co. Caloura 300mvsTudor Black Bay 68

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

Caloura 300m
Borealis Watch Co.Caloura 300m
MSRP $275
Black Bay 68
TudorBlack Bay 68
MSRP $5,475

At a glance

18 of 29 specs differ
Diameter
Caloura 300m42mm
Black Bay 6843mm
Power Reserve
Caloura 300m40h
Black Bay 6870h
Water Resistance
Caloura 300m300m
Black Bay 68200m
MSRP
Caloura 300m$275
Black Bay 68$5,475

Full specifications

Case

7 specs
Diameter
42mm
43mm
Thickness
13.9mm
13.6mm
Lug-to-Lug
44.20mm
46mm
Lug Width
22mm
22mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Black
Blue
Lume
BGW9
None

Movement

6 specs
Caliber
NH35
MT5601-U
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
$275
$5,475

Follow this matchup

Get a note when Borealis Watch Co. Caloura 300m vs Tudor Black Bay 68 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.

Boldr Marine
Boldrmicro

Marine

2 variantsRef. marine-elewana
40mm·Automatic·200m WR
$439MSRP
—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 Odyssey Freediver
Boldrmicro

Odyssey Freediver

7 variantsRef. odyssey-freediver-202
40mm·Automatic·300m WR
$649MSRP
—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
Christopher Ward C60 Lympstone
Christopher Wardmicro

C60 Lympstone

6 watches · 9 variantsC60
40mm·Automatic·600m WR
$1,615MSRP
—Used
Spinnaker Tesei Titanium
Spinnakermicro

Tesei Titanium

4 watches · 10 variantsTesei
42mm·Automatic·200m WR
$625MSRP
—Used
Spinnaker Hull Commander
Spinnakermicro

Hull Commander

8 watches · 32 variantsHull
42mm·Automatic·300m WR
$520MSRP
—Used
Baltic Aquascaphe Titanium
Balticmicro

Aquascaphe Titanium

2 variantsAquascaphe Titanium
41mm·Automatic·300m WR
$788MSRP
—Used
All alternatives to the Caloura 300m →All alternatives to the Black Bay 68 →
Explore the full catalog
Adjacent matchups

People also compared

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

Boldr MarinevsTudor Black Bay 68Boldr Odyssey FreedivervsTudor Black Bay 68Christopher Ward C60 LympstonevsTudor Black Bay 68Spinnaker Tesei TitaniumvsTudor Black Bay 68Borealis Watch Co. Caloura 300mvsIslander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323Borealis Watch Co. Caloura 300mvsIslander Luminous Wave Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-62
Edit this comparisonAdd another watchMore diver comparisonsBest Diver Watches Under $500