Which is cheaper, the Seiko Prospex SPEEDTIMER Mechanical Chronograph or the Vaer D4 Outerknown Solar Diver?

At MSRP the Vaer D4 Outerknown Solar Diver is the cheaper of the two at $549, against $2,500 for the Seiko Prospex SPEEDTIMER Mechanical Chronograph — a $1,951 gap before any retailer discounting.

Which is bigger, the Seiko Prospex SPEEDTIMER Mechanical Chronograph or the Vaer D4 Outerknown Solar Diver?

The Seiko Prospex SPEEDTIMER Mechanical Chronograph wears larger at 42mm versus 39mm for the Vaer D4 Outerknown Solar Diver — a 3mm difference across the dial.

What movement does the Seiko Prospex SPEEDTIMER Mechanical Chronograph run compared to the Vaer D4 Outerknown Solar Diver?

The Seiko Prospex SPEEDTIMER Mechanical Chronograph runs a automatic caliber (8R48), while the Vaer D4 Outerknown Solar Diver runs a quartz.

Side by side

Seiko Prospex SPEEDTIMER Mechanical ChronographvsVaer D4 Outerknown Solar Diver

Q: Which has better water resistance, the Seiko Prospex SPEEDTIMER Mechanical Chronograph or the Vaer D4 Outerknown Solar Diver?

The Vaer D4 Outerknown Solar Diver is rated to 200m versus 10m for the Seiko Prospex SPEEDTIMER Mechanical Chronograph.

Q: Which has a longer power reserve, the Seiko Prospex SPEEDTIMER Mechanical Chronograph or the Vaer D4 Outerknown Solar Diver?

The Seiko Prospex SPEEDTIMER Mechanical Chronograph carries a 45-hour power reserve against 40 hours on the Vaer D4 Outerknown Solar Diver.

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

Seiko Prospex SPEEDTIMER Mechanical Chronograph

srq047j1

MSRP $2,500

Vaer D4 Outerknown Solar Diver

d4-outerknown-usa-solar-diver-marine

MSRP $549

At a glance

16 of 29 specs differ

Diameter

Prospex SPEEDTIMER Mechanical Chronograph42mm

D4 Outerknown Solar Diver39mm

Power Reserve

Prospex SPEEDTIMER Mechanical Chronograph45h

D4 Outerknown Solar Diver40h

Water Resistance

Prospex SPEEDTIMER Mechanical Chronograph100m

D4 Outerknown Solar Diver200m

MSRP

Prospex SPEEDTIMER Mechanical Chronograph$2,500

D4 Outerknown Solar Diver$549

Full specifications

Case

6 specs

Crystal & Dial

5 specs

Crystal

Sapphire

Domed Sapphire

Crystal Shape

Curved

Flat

AR Coating

Anti-reflective coating on inner surface

Inner

Dial Color

Black

Blue

Lume

LumiBrite on hands and index(es)

None

Movement

4 specs

Caliber

8R48

—

Type

Automatic

Quartz

Power Reserve

45h

40h

Jewels

Pricing

1 specs

MSRP

$2,500

$549

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