Which is cheaper, the Aigi Watches NORTHERN LIGHTS AUTOMATIC or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

At MSRP the Aigi Watches NORTHERN LIGHTS AUTOMATIC is the cheaper of the two at $443, against $1,300 for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a $857 gap before any retailer discounting.

Which is bigger, the Aigi Watches NORTHERN LIGHTS AUTOMATIC or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Aigi Watches NORTHERN LIGHTS AUTOMATIC wears larger at 43mm versus 40mm for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a 3mm difference across the dial.

Which has better water resistance, the Aigi Watches NORTHERN LIGHTS AUTOMATIC or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Seiko Prospex Sea 1965 Heritage Diver's Watch is rated to 300m versus 200m for the Aigi Watches NORTHERN LIGHTS AUTOMATIC.

Which has a longer power reserve, the Aigi Watches NORTHERN LIGHTS AUTOMATIC or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Seiko Prospex Sea 1965 Heritage Diver's Watch carries a 72-hour power reserve against 40 hours on the Aigi Watches NORTHERN LIGHTS AUTOMATIC.

What movement does the Aigi Watches NORTHERN LIGHTS AUTOMATIC run compared to the Seiko Prospex Sea 1965 Heritage Diver's Watch?

Both watches run automatic movements — the Aigi Watches NORTHERN LIGHTS AUTOMATIC uses the NH35 and the Seiko Prospex Sea 1965 Heritage Diver's Watch uses the 6R55.

Side by side

Aigi Watches NORTHERN LIGHTS AUTOMATICvsSeiko Prospex Sea 1965 Heritage Diver's Watch

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

Add a watch

Aigi Watches NORTHERN LIGHTS AUTOMATIC

northern-lights

MSRP $443

See the full NORTHERN LIGHTS AUTOMATIC

Seiko Prospex Sea 1965 Heritage Diver's Watch

spb451j1

MSRP $1,300

See the full Prospex Sea 1965 Heritage Diver's Watch

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At a glance

14 of 29 specs differ

Diameter

NORTHERN LIGHTS AUTOMATIC43mm

Prospex Sea 1965 Heritage Diver's Watch40mm

Power Reserve

NORTHERN LIGHTS AUTOMATIC40h

Prospex Sea 1965 Heritage Diver's Watch72h

Water Resistance

NORTHERN LIGHTS AUTOMATIC200m

Prospex Sea 1965 Heritage Diver's Watch300m

MSRP

NORTHERN LIGHTS AUTOMATIC$443

Prospex Sea 1965 Heritage Diver's Watch$1,300

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

—

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

NH35

6R55

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$443

$1,300

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Aigi Watches NORTHERN LIGHTS AUTOMATICvsSeiko Prospex Sea 1965 Heritage Diver's Watch

At a glance

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