Which is cheaper, the Seiko Prospex Sea or the Vaer D4 Outerknown Solar Diver?

At MSRP the Vaer D4 Outerknown Solar Diver is the cheaper of the two at $549, against $595 for the Seiko Prospex Sea — a $46 gap before any retailer discounting.

Which is bigger, the Seiko Prospex Sea or the Vaer D4 Outerknown Solar Diver?

The Seiko Prospex Sea wears larger at 41.7mm versus 39mm for the Vaer D4 Outerknown Solar Diver — a 2.7mm difference across the dial.

Which has a longer power reserve, the Seiko Prospex Sea or the Vaer D4 Outerknown Solar Diver?

The Seiko Prospex Sea carries a 41-hour power reserve against 40 hours on the Vaer D4 Outerknown Solar Diver.

What movement does the Seiko Prospex Sea run compared to the Vaer D4 Outerknown Solar Diver?

The Seiko Prospex Sea runs a automatic caliber (4R35), while the Vaer D4 Outerknown Solar Diver runs a quartz.

Side by side

Seiko Prospex SeavsVaer D4 Outerknown Solar Diver

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

Seiko Prospex Sea

srpl11

MSRP $595

Vaer D4 Outerknown Solar Diver

d4-outerknown-usa-solar-diver-marine

MSRP $549

At a glance

12 of 29 specs differ

Diameter

Prospex Sea41.7mm

D4 Outerknown Solar Diver39mm

Power Reserve

Prospex Sea41h

D4 Outerknown Solar Diver40h

Water Resistance

Prospex Sea200m

D4 Outerknown Solar Diver200m

MSRP

Prospex Sea$595

D4 Outerknown Solar Diver$549

Full specifications

Case

4 specs

Diameter

41.7mm

39mm

Thickness

12.3mm

13.18mm

Lug-to-Lug

49.5mm

46mm

Material

Stainless Steel

316L Stainless Steel

Crystal & Dial

3 specs

Crystal

Hardlex

Domed Sapphire

Dial Color

Black

Blue

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

4 specs

Caliber

4R35

—

Type

Automatic

Quartz

Power Reserve

41h

40h

Jewels

Pricing

1 specs

MSRP

$595

$549

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Seiko Prospex SeavsVaer D4 Outerknown Solar Diver

At a glance

Full specifications

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