Which is cheaper, the Fortis Flieger F-39 Werk 7 or the Sternglas Naos XS Automatik?

At MSRP the Sternglas Naos XS Automatik is the cheaper of the two at $431, against $4,510 for the Fortis Flieger F-39 Werk 7 — a $4,079 gap before any retailer discounting.

Which is bigger, the Fortis Flieger F-39 Werk 7 or the Sternglas Naos XS Automatik?

The Fortis Flieger F-39 Werk 7 wears larger at 39mm versus 33mm for the Sternglas Naos XS Automatik — a 6mm difference across the dial.

Which has better water resistance, the Fortis Flieger F-39 Werk 7 or the Sternglas Naos XS Automatik?

The Fortis Flieger F-39 Werk 7 is rated to 200m versus 50m for the Sternglas Naos XS Automatik.

What movement does the Fortis Flieger F-39 Werk 7 run compared to the Sternglas Naos XS Automatik?

Both watches run automatic movements — the Fortis Flieger F-39 Werk 7 uses the Werk 7 (Manufacture) and the Sternglas Naos XS Automatik uses the Miyota 6T15.

Side by side

Fortis Flieger F-39 Werk 7vsSternglas Naos XS Automatik

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

Fortis Flieger F-39 Werk 7

F-39 Werk 7

MSRP $4,510

Sternglas Naos XS Automatik

naos-xs-automatik-gold

MSRP $431

At a glance

11 of 29 specs differ

Diameter

Flieger F-39 Werk 739mm

Naos XS Automatik33mm

Power Reserve

Flieger F-39 Werk 738h

Naos XS Automatik—

Water Resistance

Flieger F-39 Werk 7200m

Naos XS Automatik50m

MSRP

Flieger F-39 Werk 7$4,510

Naos XS Automatik$431

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Dial Color

Black

—

Movement

3 specs

Caliber

Werk 7 (Manufacture)

Miyota 6T15

Power Reserve

38h

—

Jewels

—

Pricing

1 specs

MSRP

$4,510

$431

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