Which is cheaper, the Borealis Watch Co. Jamanta or the Spinnaker Bradner Pearl Diver?

At MSRP the Spinnaker Bradner Pearl Diver is the cheaper of the two at $370, against $415 for the Borealis Watch Co. Jamanta — a $45 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Jamanta or the Spinnaker Bradner Pearl Diver?

The Borealis Watch Co. Jamanta wears larger at 42.50mm versus 42mm for the Spinnaker Bradner Pearl Diver — a 0.5mm difference across the dial.

Which has better water resistance, the Borealis Watch Co. Jamanta or the Spinnaker Bradner Pearl Diver?

The Borealis Watch Co. Jamanta is rated to 300m versus 180m for the Spinnaker Bradner Pearl Diver.

What movement does the Borealis Watch Co. Jamanta run compared to the Spinnaker Bradner Pearl Diver?

Both watches run automatic movements — the Borealis Watch Co. Jamanta uses the Miyota 9015 and the Spinnaker Bradner Pearl Diver uses the SII NH35A.

Side by side

Borealis Watch Co. JamantavsSpinnaker Bradner Pearl Diver

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

Borealis Watch Co.Jamanta

prometheus-jamanta-black-dial-date-miyota-9015

MSRP $415

Spinnaker Bradner Pearl Diver

bradner-pearl-diver-automatic-limited-edition-emerald-tide-sp-5158-11

MSRP $370

At a glance

10 of 29 specs differ

Diameter

Jamanta42.50mm

Bradner Pearl Diver42mm

Power Reserve

Jamanta40h

Bradner Pearl Diver40h

Water Resistance

Jamanta300m

Bradner Pearl Diver180m

MSRP

Jamanta$415

Bradner Pearl Diver$370

Full specifications

Case

6 specs

Diameter

42.50mm

42mm

Thickness

13.30mm

15mm

Lug-to-Lug

50.40mm

50mm

Lug Width

22mm

Material

Stainless Steel

316L Stainless Steel

Water Resistance

300m

180m

Crystal & Dial

2 specs

Dial Color

Black

Emerald

Lume

BGW9

None

Movement

1 specs

Caliber

Miyota 9015

SII NH35A

Pricing

1 specs

MSRP

$415

$370

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