Which is cheaper, the Boldr Polaris or the Seestern S450 Ocean Star?

At MSRP the Seestern S450 Ocean Star is the cheaper of the two at $299, against $399 for the Boldr Polaris — a $100 gap before any retailer discounting.

Which is bigger, the Boldr Polaris or the Seestern S450 Ocean Star?

The Seestern S450 Ocean Star wears larger at 40mm versus 38mm for the Boldr Polaris — a 2mm difference across the dial.

Which has better water resistance, the Boldr Polaris or the Seestern S450 Ocean Star?

The Boldr Polaris is rated to 200m versus 100m for the Seestern S450 Ocean Star.

Which has a longer power reserve, the Boldr Polaris or the Seestern S450 Ocean Star?

The Seestern S450 Ocean Star carries a 41-hour power reserve against 40 hours on the Boldr Polaris.

What movement does the Boldr Polaris run compared to the Seestern S450 Ocean Star?

Both watches run automatic movements — the Boldr Polaris uses the Seiko NH38A and the Seestern S450 Ocean Star uses the TMI NH35A.

Side by side

Boldr PolarisvsSeestern S450 Ocean Star

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

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Boldr Polaris

polaris-blackout

MSRP $399

Seestern S450 Ocean Star

S450.WS

MSRP $299

At a glance

14 of 29 specs differ

Diameter

Polaris38mm

S450 Ocean Star40mm

Power Reserve

Polaris40h

S450 Ocean Star41h

Water Resistance

Polaris200m

S450 Ocean Star100m

MSRP

Polaris$399

S450 Ocean Star$299

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Blackout

White

Lume

Super-LumiNova

Tritium

Movement

5 specs

Caliber

Seiko NH38A

TMI NH35A

Beat Rate

28,800 vph

21,600 vph

Power Reserve

40h

41h

Jewels

Complications

None

GMT, Date

Pricing

1 specs

MSRP

$399

$299

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Boldr PolarisvsSeestern S450 Ocean Star

At a glance

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