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

At MSRP the Marnaut Dark Surge 300 is the cheaper of the two at $1,390, against $1,500 for the Seiko Prospex Sea — a $110 gap before any retailer discounting.

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

The Seiko Prospex Sea wears larger at 43.5mm versus 41mm for the Marnaut Dark Surge 300 — a 2.5mm difference across the dial.

Which has better water resistance, the Marnaut Dark Surge 300 or the Seiko Prospex Sea?

The Marnaut Dark Surge 300 is rated to 300m versus 200m for the Seiko Prospex Sea.

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

The Seiko Prospex Sea carries a 70-hour power reserve against 41 hours on the Marnaut Dark Surge 300.

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

Both watches run automatic movements — the Marnaut Dark Surge 300 uses the Sellita SW200-1 and the Seiko Prospex Sea uses the 6R35.

Side by side

Marnaut Dark Surge 300vsSeiko Prospex Sea

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

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Marnaut Dark Surge 300

MSRP $1,390

Seiko Prospex Sea

spb349j1

MSRP $1,500

At a glance

14 of 29 specs differ

Diameter

Dark Surge 30041mm

Prospex Sea43.5mm

Power Reserve

Dark Surge 30041h

Prospex Sea70h

Water Resistance

Dark Surge 300300m

Prospex Sea200m

MSRP

Dark Surge 300$1,390

Prospex Sea$1,500

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Adriatic

Black

Lume

SuperLuminova C3

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Sellita SW200-1

6R35

Power Reserve

41h

70h

Jewels

Pricing

1 specs

MSRP

—

$1,500

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Marnaut Dark Surge 300vsSeiko Prospex Sea

At a glance

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