Which is cheaper, the Boldr Marine or the Seiko Prospex LX line?

At MSRP the Boldr Marine is the cheaper of the two at $439, against $6,500 for the Seiko Prospex LX line — a $6,061 gap before any retailer discounting.

Which is bigger, the Boldr Marine or the Seiko Prospex LX line?

The Seiko Prospex LX line wears larger at 44.8mm versus 40mm for the Boldr Marine — a 4.8mm difference across the dial.

Which has better water resistance, the Boldr Marine or the Seiko Prospex LX line?

The Seiko Prospex LX line is rated to 300m versus 200m for the Boldr Marine.

Which has a longer power reserve, the Boldr Marine or the Seiko Prospex LX line?

The Seiko Prospex LX line 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 LX line?

The Boldr Marine runs a automatic caliber (NH35A), while the Seiko Prospex LX line runs a spring drive (5R65).

Side by side

Boldr MarinevsSeiko Prospex LX line

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

Boldr Marine

marine-elewana

MSRP $439

Seiko Prospex LX line

snr029j1

MSRP $6,500

At a glance

15 of 29 specs differ

Diameter

Marine40mm

Prospex LX line44.8mm

Power Reserve

Marine40h

Prospex LX line72h

Water Resistance

Marine200m

Prospex LX line300m

MSRP

Marine$439

Prospex LX line$6,500

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Yes

Anti-reflective coating on inner surface

Dial Color

Defender Elewana

Black

Lume

Super-LumiNova

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

NH35A

5R65

Type

Automatic

Spring Drive

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$439

$6,500

Follow this matchup

Get a note when Boldr Marine vs Seiko Prospex LX line gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Borealis Watch Co.micro

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Borealis Watch Co. NeptunovsSeiko Prospex LX line Borealis Watch Co. Caloura 300mvsSeiko Prospex LX line Baltic Aquascaphe ClassicvsSeiko Prospex LX line CWC Arctic Radar Automatic Diver WatchvsSeiko Prospex LX line Boldr MarinevsBoldr Odyssey Regatta Boldr MarinevsSpinnaker Dumas Automatic

Edit this comparison Add another watch Explore more 39–46mm watches

Boldr MarinevsSeiko Prospex LX line

At a glance

Full specifications

Follow this matchup

More watches worth a look

Neptuno

Odyssey Regatta

Caloura 300m

Dumas Automatic

Aquascaphe Classic

Cave Dweller

Arctic Radar Automatic Diver Watch

Great White 43

People also compared