Which is cheaper, the Hamilton Jazzmaster Day Date Auto or the Borealis Watch Co. Jamanta?

At MSRP the Borealis Watch Co. Jamanta is the cheaper of the two at $415, against $1,045 for the Hamilton Jazzmaster Day Date Auto — a $630 gap before any retailer discounting.

Which is bigger, the Hamilton Jazzmaster Day Date Auto or the Borealis Watch Co. Jamanta?

The Borealis Watch Co. Jamanta wears larger at 42.50mm versus 40mm for the Hamilton Jazzmaster Day Date Auto — a 2.5mm difference across the dial.

Which has better water resistance, the Hamilton Jazzmaster Day Date Auto or the Borealis Watch Co. Jamanta?

The Borealis Watch Co. Jamanta is rated to 300m versus 50m for the Hamilton Jazzmaster Day Date Auto.

Which has a longer power reserve, the Hamilton Jazzmaster Day Date Auto or the Borealis Watch Co. Jamanta?

The Hamilton Jazzmaster Day Date Auto carries a 80-hour power reserve against 40 hours on the Borealis Watch Co. Jamanta.

What movement does the Hamilton Jazzmaster Day Date Auto run compared to the Borealis Watch Co. Jamanta?

Both watches run automatic movements — the Hamilton Jazzmaster Day Date Auto uses the H-40 and the Borealis Watch Co. Jamanta uses the Miyota 9015.

Side by side

Hamilton Jazzmaster Day Date AutovsBorealis Watch Co. Jamanta

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

Hamilton Jazzmaster Day Date Auto

h32505131

MSRP $1,045

Borealis Watch Co.Jamanta

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

MSRP $415

At a glance

10 of 29 specs differ

Diameter

Jazzmaster Day Date Auto40mm

Jamanta42.50mm

Power Reserve

Jazzmaster Day Date Auto80h

Jamanta40h

Water Resistance

Jazzmaster Day Date Auto50m

Jamanta300m

MSRP

Jazzmaster Day Date Auto$1,045

Jamanta$415

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Lume

None

BGW9

Movement

2 specs

Caliber

H-40

Miyota 9015

Power Reserve

80h

40h

Pricing

1 specs

MSRP

$1,045

$415

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