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

At MSRP the Seiko Prospex SPEEDTIMER Mechanical is the cheaper of the two at $995, against $1,390 for the Marnaut Dark Surge 300 — a $395 gap before any retailer discounting.

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

The Marnaut Dark Surge 300 wears larger at 41mm versus 39.5mm for the Seiko Prospex SPEEDTIMER Mechanical — a 1.5mm difference across the dial.

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

The Marnaut Dark Surge 300 is rated to 300m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical.

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

The Seiko Prospex SPEEDTIMER Mechanical carries a 72-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 SPEEDTIMER Mechanical?

Both watches run automatic movements — the Marnaut Dark Surge 300 uses the Sellita SW200-1 and the Seiko Prospex SPEEDTIMER Mechanical uses the 6R55.

Side by side

Marnaut Dark Surge 300vsSeiko Prospex SPEEDTIMER Mechanical

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 SPEEDTIMER Mechanical

spb513j1

MSRP $995

At a glance

13 of 29 specs differ

Diameter

Dark Surge 30041mm

Prospex SPEEDTIMER Mechanical39.5mm

Power Reserve

Dark Surge 30041h

Prospex SPEEDTIMER Mechanical72h

Water Resistance

Dark Surge 300300m

Prospex SPEEDTIMER Mechanical200m

MSRP

Dark Surge 300$1,390

Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

5 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

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

6R55

Power Reserve

41h

72h

Jewels

Pricing

1 specs

MSRP

—

$995

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Marnaut Dark Surge 300vsSeiko Prospex SPEEDTIMER Mechanical

At a glance

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