Which is cheaper, the Boldr Marine or the Seiko 5KX?

At MSRP the Seiko 5KX is the cheaper of the two at $350, against $439 for the Boldr Marine — a $89 gap before any retailer discounting.

Which is bigger, the Boldr Marine or the Seiko 5KX?

The Seiko 5KX wears larger at 42.5mm versus 40mm for the Boldr Marine — a 2.5mm difference across the dial.

Which has better water resistance, the Boldr Marine or the Seiko 5KX?

The Boldr Marine is rated to 200m versus 10m for the Seiko 5KX.

Which has a longer power reserve, the Boldr Marine or the Seiko 5KX?

The Seiko 5KX carries a 41-hour power reserve against 40 hours on the Boldr Marine.

What movement does the Boldr Marine run compared to the Seiko 5KX?

Both watches run automatic movements — the Boldr Marine uses the NH35A and the Seiko 5KX uses the 4R36.

Side by side

Boldr MarinevsSeiko 5KX

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

Boldr Marine

marine-elewana

MSRP $439

Seiko 5KX

srpd51

MSRP $350

At a glance

13 of 29 specs differ

Diameter

Marine40mm

5KX42.5mm

Power Reserve

Marine40h

5KX41h

Water Resistance

Marine200m

5KX100m

MSRP

Marine$439

5KX$350

Full specifications

Case

5 specs

Crystal & Dial

4 specs

Crystal

Sapphire

Hardlex

AR Coating

Yes

Inner

Dial Color

Defender Elewana

Black

Lume

Super-LumiNova

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

NH35A

4R36

Power Reserve

40h

41h

Jewels

Pricing

1 specs

MSRP

$439

$350

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Boldr MarinevsSeiko 5KX

At a glance

Full specifications

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