Which is cheaper, the IWC Schaffhausen Iw328801 Aquatimer Automatic 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 $625, against $6,700 for the IWC Schaffhausen Iw328801 Aquatimer Automatic — a $6,075 gap before any retailer discounting.

Which is bigger, the IWC Schaffhausen Iw328801 Aquatimer Automatic or the Seiko Prospex Sea Save the Ocean Special Edition?

The Seiko Prospex Sea Save the Ocean Special Edition wears larger at 45mm versus 42mm for the IWC Schaffhausen Iw328801 Aquatimer Automatic — a 3mm difference across the dial.

Which has better water resistance, the IWC Schaffhausen Iw328801 Aquatimer Automatic or the Seiko Prospex Sea Save the Ocean Special Edition?

The IWC Schaffhausen Iw328801 Aquatimer Automatic is rated to 300m versus 200m for the Seiko Prospex Sea Save the Ocean Special Edition.

Which has a longer power reserve, the IWC Schaffhausen Iw328801 Aquatimer Automatic or the Seiko Prospex Sea Save the Ocean Special Edition?

The IWC Schaffhausen Iw328801 Aquatimer Automatic carries a 120-hour power reserve against 41 hours on the Seiko Prospex Sea Save the Ocean Special Edition.

What movement does the IWC Schaffhausen Iw328801 Aquatimer Automatic run compared to the Seiko Prospex Sea Save the Ocean Special Edition?

Both watches run automatic movements — the IWC Schaffhausen Iw328801 Aquatimer Automatic uses the 32111 and the Seiko Prospex Sea Save the Ocean Special Edition uses the 4R36.

Side by side

IWC Schaffhausen Iw328801 Aquatimer AutomaticvsSeiko Prospex Sea Save the Ocean Special Edition

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

Add a watch

IWC Schaffhausen Iw328801 Aquatimer Automatic

IW328801

MSRP $6,700

Seiko Prospex Sea Save the Ocean Special Edition

srpf77

MSRP $625

Buy from IWC Schaffhausen ↗

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Buy from Seiko ↗

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At a glance

16 of 29 specs differ

Diameter

Iw328801 Aquatimer Automatic42mm

Prospex Sea Save the Ocean Special Edition45mm

Power Reserve

Iw328801 Aquatimer Automatic120h

Prospex Sea Save the Ocean Special Edition41h

Water Resistance

Iw328801 Aquatimer Automatic300m

Prospex Sea Save the Ocean Special Edition200m

MSRP

Iw328801 Aquatimer Automatic$6,700

Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

6 specs

Diameter

42mm

45mm

Thickness

14.1mm

13.2mm

Lug-to-Lug

—

47.7mm

Finish

Steel

Brushed and polished

Water Resistance

300m

200m

Caseback

—

Solid

Crystal & Dial

6 specs

Crystal

—

Sapphire

Crystal Shape

—

Flat

AR Coating

—

Anti-reflective coating on inner surface

Dial Color

Blue

Black

Indices

—

Applied

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

32111

4R36

Power Reserve

120h

41h

Jewels

Pricing

1 specs

MSRP

$6,700

$625

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