Side by side

Borealis Watch Co. Caloura 300mvsMKII Key West

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

Add a watch
Caloura 300m
Borealis Watch Co.Caloura 300m
MSRP $275
Key West
MKIIKey West
MSRP $1,694
Buy from Borealis Watch Co. ↗
Buy used on eBay ↗
Buy from MKII ↗
Buy used on eBay ↗

At a glance

10 of 29 specs differ
Diameter
Caloura 300m42mm
Key West40mm
Power Reserve
Caloura 300m40h
Key West—
Water Resistance
Caloura 300m300m
Key West200m
MSRP
Caloura 300m$275
Key West$1,694

Full specifications

Case

6 specs
Category
Diver
—
Diameter
42mm
40mm
Thickness
13.9mm
—
Lug-to-Lug
44.20mm
—
Lug Width
22mm
—
Water Resistance
300m
200m

Crystal & Dial

1 specs
Lume
BGW9
None

Movement

2 specs
Caliber
NH35
ETA 2893-2
Power Reserve
40h
—

Pricing

1 specs
MSRP
$275
—
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
FOLIOT Watches STRATONAUT
FOLIOT Watchesmicro
STRATONAUT GMT

STRATONAUT

3 variantsRef. black
41mm·Automatic·200m WR
—MSRP
—Used
Boldr Odyssey Freediver
Boldrmicro

Odyssey Freediver

7 variantsRef. odyssey-freediver-202
40mm·Automatic·300m WR
$649MSRP
—Used
Limes Endurance GMT
Limesmicro

Endurance GMT

3 variantsRef.
41.5mm·Automatic·300m WR
—MSRP
—Used
Christopher Ward C60 Lympstone
Christopher Wardmicro

C60 Lympstone

6 watches · 9 variantsC60
40mm·Automatic·600m WR
$1,615MSRP
—Used
Circula Watches AquaSport GMT
Circula Watchesmicro

AquaSport GMT

2 variantsRef.
40mm·Automatic·200m WR
—MSRP
—Used
Spinnaker Tesei Titanium
Spinnakermicro

Tesei Titanium

4 watches · 10 variantsTesei
42mm·Automatic·200m WR
$625MSRP
—Used
Eza 1972 Diver
Ezamicro

1972 Diver

Ref. 1972-diver-anniversary-edition
39.6mm·Automatic·200m WR
$1,411MSRP
—Used
All alternatives to the Caloura 300m →All alternatives to the Key West →
Explore the full catalog

Follow this matchup

Get a note when Borealis Watch Co. Caloura 300m vs MKII Key West gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

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

Boldr MarinevsMKII Key WestMKII Key WestvsBoldr Odyssey FreediverChristopher Ward C60 LympstonevsMKII Key WestMKII Key WestvsSpinnaker Tesei TitaniumBorealis Watch Co. Caloura 300mvsFOLIOT Watches STRATONAUTBorealis Watch Co. Caloura 300mvsLimes Endurance GMT
Edit this comparisonAdd another watch