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

At MSRP the Sternglas Naos Pro Automatik is the cheaper of the two at $755, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $1,250 gap before any retailer discounting.

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

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

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

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

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

The Sternglas Naos Pro 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 Automatik?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Sternglas Naos Pro Automatik uses the Miyota 9015.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsSternglas Naos Pro 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 Automatik

naos-pro-automatik-alabaster

MSRP $755

At a glance

13 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

Naos Pro Automatik38mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

Naos Pro Automatik42h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

Naos Pro Automatik50m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

Naos Pro Automatik$755

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 9015

Power Reserve

42h

Jewels

—

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$755

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