Which is cheaper, the Gruppo Gamma Vanguard Weathered Date or the Seiko Prospex Sea Save the Ocean Special Edition?

At MSRP the Seiko Prospex Sea Save the Ocean Special Edition is the cheaper of the two at $650, against $790 for the Gruppo Gamma Vanguard Weathered Date — a $140 gap before any retailer discounting.

Which is bigger, the Gruppo Gamma Vanguard Weathered Date or the Seiko Prospex Sea Save the Ocean Special Edition?

The Seiko Prospex Sea Save the Ocean Special Edition wears larger at 43.8mm versus 42mm for the Gruppo Gamma Vanguard Weathered Date — a 1.8mm difference across the dial.

Which has better water resistance, the Gruppo Gamma Vanguard Weathered Date or the Seiko Prospex Sea Save the Ocean Special Edition?

The Seiko Prospex Sea Save the Ocean Special Edition is rated to 200m versus 100m for the Gruppo Gamma Vanguard Weathered Date.

Which has a longer power reserve, the Gruppo Gamma Vanguard Weathered Date or the Seiko Prospex Sea Save the Ocean Special Edition?

The Gruppo Gamma Vanguard Weathered Date carries a 42-hour power reserve against 41 hours on the Seiko Prospex Sea Save the Ocean Special Edition.

What movement does the Gruppo Gamma Vanguard Weathered Date run compared to the Seiko Prospex Sea Save the Ocean Special Edition?

Both watches run automatic movements — the Gruppo Gamma Vanguard Weathered Date uses the Miyota 9015 and the Seiko Prospex Sea Save the Ocean Special Edition uses the 4R35.

Side by side

Gruppo Gamma Vanguard Weathered DatevsSeiko Prospex Sea Save the Ocean Special Edition

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

Seiko Prospex Sea Save the Ocean Special Edition

srpe33

MSRP $650

At a glance

14 of 29 specs differ

Diameter

Vanguard Weathered Date42mm

Prospex Sea Save the Ocean Special Edition43.8mm

Power Reserve

Vanguard Weathered Date42h

Prospex Sea Save the Ocean Special Edition41h

Water Resistance

Vanguard Weathered Date100m

Prospex Sea Save the Ocean Special Edition200m

MSRP

Vanguard Weathered Date$790

Prospex Sea Save the Ocean Special Edition$650

Full specifications

Case

6 specs

Crystal & Dial

3 specs

AR Coating

Yes

Anti-reflective coating on inner surface

Dial Color

Forged Carbon

Black

Lume

Super-LumiNova

LumiBrite on hands, index(es) and bezel

Movement

4 specs

Caliber

Miyota 9015

4R35

Power Reserve

42h

41h

Jewels

Complications

Date

None

Pricing

1 specs

MSRP

$790

$650

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