Which is cheaper, the Fortis Stratoliner S-41 or the Vaer D4 Outerknown Solar Diver?

At MSRP the Vaer D4 Outerknown Solar Diver is the cheaper of the two at $549, against $5,450 for the Fortis Stratoliner S-41 — a $4,901 gap before any retailer discounting.

Which is bigger, the Fortis Stratoliner S-41 or the Vaer D4 Outerknown Solar Diver?

The Fortis Stratoliner S-41 wears larger at 41mm versus 39mm for the Vaer D4 Outerknown Solar Diver — a 2mm difference across the dial.

Which has a longer power reserve, the Fortis Stratoliner S-41 or the Vaer D4 Outerknown Solar Diver?

The Fortis Stratoliner S-41 carries a 60-hour power reserve against 40 hours on the Vaer D4 Outerknown Solar Diver.

What movement does the Fortis Stratoliner S-41 run compared to the Vaer D4 Outerknown Solar Diver?

The Fortis Stratoliner S-41 runs a automatic caliber (Manufacture Caliber WERK 17), while the Vaer D4 Outerknown Solar Diver runs a quartz.

Side by side

Fortis Stratoliner S-41vsVaer D4 Outerknown Solar Diver

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

Fortis Stratoliner S-41

S-41

MSRP $5,450

Vaer D4 Outerknown Solar Diver

d4-outerknown-usa-solar-diver-marine

MSRP $549

At a glance

13 of 29 specs differ

Diameter

Stratoliner S-4141mm

D4 Outerknown Solar Diver39mm

Power Reserve

Stratoliner S-4160h

D4 Outerknown Solar Diver40h

Water Resistance

Stratoliner S-41200m

D4 Outerknown Solar Diver200m

MSRP

Stratoliner S-41$5,450

D4 Outerknown Solar Diver$549

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

White

Blue

Movement

4 specs

Caliber

Manufacture Caliber WERK 17

—

Type

Automatic

Quartz

Power Reserve

60h

40h

Jewels

Pricing

1 specs

MSRP

$5,450

$549

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