Which is cheaper, the Seestern S450 Ocean Star or the Spinnaker Tesei Forged Carbon?

At MSRP the Seestern S450 Ocean Star is the cheaper of the two at $299, against $550 for the Spinnaker Tesei Forged Carbon — a $251 gap before any retailer discounting.

Which is bigger, the Seestern S450 Ocean Star or the Spinnaker Tesei Forged Carbon?

The Spinnaker Tesei Forged Carbon wears larger at 43mm versus 40mm for the Seestern S450 Ocean Star — a 3mm difference across the dial.

Which has better water resistance, the Seestern S450 Ocean Star or the Spinnaker Tesei Forged Carbon?

The Spinnaker Tesei Forged Carbon is rated to 300m versus 100m for the Seestern S450 Ocean Star.

Which has a longer power reserve, the Seestern S450 Ocean Star or the Spinnaker Tesei Forged Carbon?

The Seestern S450 Ocean Star carries a 41-hour power reserve against 40 hours on the Spinnaker Tesei Forged Carbon.

What movement does the Seestern S450 Ocean Star run compared to the Spinnaker Tesei Forged Carbon?

Both watches run automatic movements — the Seestern S450 Ocean Star uses the TMI NH35A and the Spinnaker Tesei Forged Carbon uses the SII NH35A.

Side by side

Seestern S450 Ocean StarvsSpinnaker Tesei Forged Carbon

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

Seestern S450 Ocean Star

S450.WS

MSRP $299

Spinnaker Tesei Forged Carbon

tesei-forged-carbon-automatic-limited-edition-white-frost-sp-5143-01

MSRP $550

At a glance

12 of 29 specs differ

Diameter

S450 Ocean Star40mm

Tesei Forged Carbon43mm

Power Reserve

S450 Ocean Star41h

Tesei Forged Carbon40h

Water Resistance

S450 Ocean Star100m

Tesei Forged Carbon300m

MSRP

S450 Ocean Star$299

Tesei Forged Carbon$550

Full specifications

Case

5 specs

Diameter

40mm

43mm

Thickness

12mm

16mm

Lug-to-Lug

48mm

52mm

Lug Width

20mm

22mm

Water Resistance

100m

300m

Crystal & Dial

1 specs

Lume

Tritium

None

Movement

5 specs

Caliber

TMI NH35A

SII NH35A

Beat Rate

21,600 vph

28,800 vph

Power Reserve

41h

40h

Jewels

Complications

GMT, Date

None

Pricing

1 specs

MSRP

$299

$550

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