Which is bigger, the Seiko Prospex Sea or the Marnaut Dark Surge 300?

The Seiko Prospex Sea wears larger at 42mm versus 41mm for the Marnaut Dark Surge 300 — a 1mm difference across the dial.

Which has a longer power reserve, the Seiko Prospex Sea or the Marnaut Dark Surge 300?

The Seiko Prospex Sea carries a 72-hour power reserve against 41 hours on the Marnaut Dark Surge 300.

What movement does the Seiko Prospex Sea run compared to the Marnaut Dark Surge 300?

Both watches run automatic movements — the Seiko Prospex Sea uses the 6R54 and the Marnaut Dark Surge 300 uses the Sellita SW200-1.

Side by side

Seiko Prospex SeavsMarnaut Dark Surge 300

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

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Seiko Prospex Sea

hbc001j1

Marnaut Dark Surge 300

MSRP $1,390

At a glance

11 of 29 specs differ

Diameter

Prospex Sea42mm

Dark Surge 30041mm

Power Reserve

Prospex Sea72h

Dark Surge 30041h

Water Resistance

Prospex Sea300m

Dark Surge 300300m

MSRP

Prospex Sea—

Dark Surge 300$1,390

Full specifications

Case

4 specs

Crystal & Dial

3 specs

AR Coating

Anti-reflective coating on inner surface

Inner

Dial Color

Black

Adriatic

Lume

LumiBrite on hands, index(es) and bezel

SuperLuminova C3

Movement

3 specs

Caliber

6R54

Sellita SW200-1

Power Reserve

72h

41h

Jewels

Pricing

1 specs

MSRP

—

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Seiko Prospex SeavsMarnaut Dark Surge 300

At a glance

Full specifications

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