Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Sternglas Naos Pro GMT Automatik?

At MSRP the Sternglas Naos Pro GMT Automatik is the cheaper of the two at $863, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $1,142 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Sternglas Naos Pro GMT Automatik?

The Serica Ref. 5330 Diving Chronometer Date wears larger at 39mm versus 38mm for the Sternglas Naos Pro GMT Automatik — a 1mm difference across the dial.

Which has better water resistance, the Serica Ref. 5330 Diving Chronometer Date or the Sternglas Naos Pro GMT Automatik?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 50m for the Sternglas Naos Pro GMT Automatik.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Sternglas Naos Pro GMT Automatik?

The Sternglas Naos Pro GMT Automatik carries a 42-hour power reserve against 42 hours on the Serica Ref. 5330 Diving Chronometer Date.

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Sternglas Naos Pro GMT Automatik?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Sternglas Naos Pro GMT Automatik uses the Miyota 9075.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsSternglas Naos Pro GMT Automatik

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

Serica Ref. 5330 Diving Chronometer Date

5330-chronometre-plongee-date

MSRP $2,005

Sternglas Naos Pro GMT Automatik

naos-pro-automatik-gmt-dunkelblau

MSRP $863

At a glance

13 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

Naos Pro GMT Automatik38mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

Naos Pro GMT Automatik42h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

Naos Pro GMT Automatik50m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

Naos Pro GMT Automatik$863

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Black

—

Lume

Super-LumiNova

Luminova Punkte

Movement

4 specs

Caliber

SoProd M100

Miyota 9075

Power Reserve

42h

Jewels

—

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$863

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