Which is cheaper, the Boldr Marine or the Seiko Prospex SPEEDTIMER Mechanical?

At MSRP the Boldr Marine is the cheaper of the two at $439, against $995 for the Seiko Prospex SPEEDTIMER Mechanical — a $556 gap before any retailer discounting.

Which is bigger, the Boldr Marine or the Seiko Prospex SPEEDTIMER Mechanical?

The Boldr Marine wears larger at 40mm versus 39.5mm for the Seiko Prospex SPEEDTIMER Mechanical — a 0.5mm difference across the dial.

Which has better water resistance, the Boldr Marine or the Seiko Prospex SPEEDTIMER Mechanical?

The Boldr Marine is rated to 200m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical.

Which has a longer power reserve, the Boldr Marine or the Seiko Prospex SPEEDTIMER Mechanical?

The Seiko Prospex SPEEDTIMER Mechanical carries a 72-hour power reserve against 40 hours on the Boldr Marine.

What movement does the Boldr Marine run compared to the Seiko Prospex SPEEDTIMER Mechanical?

Both watches run automatic movements — the Boldr Marine uses the NH35A and the Seiko Prospex SPEEDTIMER Mechanical uses the 6R55.

Side by side

Boldr MarinevsSeiko Prospex SPEEDTIMER Mechanical

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

Boldr Marine

marine-elewana

MSRP $439

Seiko Prospex SPEEDTIMER Mechanical

spb513j1

MSRP $995

At a glance

12 of 29 specs differ

Diameter

Marine40mm

Prospex SPEEDTIMER Mechanical39.5mm

Power Reserve

Marine40h

Prospex SPEEDTIMER Mechanical72h

Water Resistance

Marine200m

Prospex SPEEDTIMER Mechanical200m

MSRP

Marine$439

Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

4 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Yes

Anti-reflective coating on inner surface

Dial Color

Defender Elewana

Black

Lume

Super-LumiNova

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

NH35A

6R55

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$439

$995

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Boldr MarinevsSeiko Prospex SPEEDTIMER Mechanical

At a glance

Full specifications

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