Which is cheaper, the ALANTI Ultrablack or the Seestern S450 Ocean Star?

At MSRP the Seestern S450 Ocean Star is the cheaper of the two at $299, against $506 for the ALANTI Ultrablack — a $207 gap before any retailer discounting.

Which is bigger, the ALANTI Ultrablack or the Seestern S450 Ocean Star?

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

Which has better water resistance, the ALANTI Ultrablack or the Seestern S450 Ocean Star?

The Seestern S450 Ocean Star is rated to 100m versus 50m for the ALANTI Ultrablack.

Which has a longer power reserve, the ALANTI Ultrablack or the Seestern S450 Ocean Star?

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

What movement does the ALANTI Ultrablack run compared to the Seestern S450 Ocean Star?

Both watches run automatic movements — the ALANTI Ultrablack uses the Miyota 9039 and the Seestern S450 Ocean Star uses the TMI NH35A.

Side by side

ALANTI UltrablackvsSeestern S450 Ocean Star

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

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ALANTI Ultrablack

ultrablack

MSRP $506

Seestern S450 Ocean Star

S450.WS

MSRP $299

At a glance

14 of 29 specs differ

Diameter

Ultrablack38mm

S450 Ocean Star40mm

Power Reserve

Ultrablack40h

S450 Ocean Star41h

Water Resistance

Ultrablack50m

S450 Ocean Star100m

MSRP

Ultrablack$506

S450 Ocean Star$299

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Dial Color

Black

White

Lume

None

Tritium

Movement

5 specs

Caliber

Miyota 9039

TMI NH35A

Beat Rate

28,800 vph

21,600 vph

Power Reserve

40h

41h

Jewels

Complications

None

GMT, Date

Pricing

1 specs

MSRP

$506

$299

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ALANTI UltrablackvsSeestern S450 Ocean Star

At a glance

Full specifications

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