Which is cheaper, the Gruppo Gamma Vanguard Weathered Date or the Seestern S450 Ocean Star?

At MSRP the Seestern S450 Ocean Star is the cheaper of the two at $299, against $790 for the Gruppo Gamma Vanguard Weathered Date — a $491 gap before any retailer discounting.

Which is bigger, the Gruppo Gamma Vanguard Weathered Date or the Seestern S450 Ocean Star?

The Gruppo Gamma Vanguard Weathered Date wears larger at 42mm versus 40mm for the Seestern S450 Ocean Star — a 2mm difference across the dial.

Which has a longer power reserve, the Gruppo Gamma Vanguard Weathered Date or the Seestern S450 Ocean Star?

The Gruppo Gamma Vanguard Weathered Date carries a 42-hour power reserve against 41 hours on the Seestern S450 Ocean Star.

What movement does the Gruppo Gamma Vanguard Weathered Date run compared to the Seestern S450 Ocean Star?

Both watches run automatic movements — the Gruppo Gamma Vanguard Weathered Date uses the Miyota 9015 and the Seestern S450 Ocean Star uses the TMI NH35A.

Side by side

Gruppo Gamma Vanguard Weathered DatevsSeestern S450 Ocean Star

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

Gruppo Gamma Vanguard Weathered Date

av-11

MSRP $790

Seestern S450 Ocean Star

S450.WS

MSRP $299

At a glance

16 of 29 specs differ

Diameter

Vanguard Weathered Date42mm

S450 Ocean Star40mm

Power Reserve

Vanguard Weathered Date42h

S450 Ocean Star41h

Water Resistance

Vanguard Weathered Date100m

S450 Ocean Star100m

MSRP

Vanguard Weathered Date$790

S450 Ocean Star$299

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Forged Carbon

White

Lume

Super-LumiNova

Tritium

Movement

5 specs

Caliber

Miyota 9015

TMI NH35A

Beat Rate

28,800 vph

21,600 vph

Power Reserve

42h

41h

Jewels

Complications

Date

GMT, Date

Pricing

1 specs

MSRP

$790

$299

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