Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Marathon CeraShell Pilot's Navigator?

At MSRP the Marathon CeraShell Pilot's Navigator is the cheaper of the two at $550, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $1,455 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Marathon CeraShell Pilot's Navigator?

The Marathon CeraShell Pilot's Navigator wears larger at 41mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 2mm difference across the dial.

Which has better water resistance, the Serica Ref. 5330 Diving Chronometer Date or the Marathon CeraShell Pilot's Navigator?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 60m for the Marathon CeraShell Pilot's Navigator.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Marathon CeraShell Pilot's Navigator?

The Serica Ref. 5330 Diving Chronometer Date carries a 42-hour power reserve against 40 hours on the Marathon CeraShell Pilot's Navigator.

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Marathon CeraShell Pilot's Navigator?

The Serica Ref. 5330 Diving Chronometer Date runs a automatic caliber (SoProd M100), while the Marathon CeraShell Pilot's Navigator runs a quartz (ETA F06).

Side by side

Serica Ref. 5330 Diving Chronometer DatevsMarathon CeraShell Pilot's Navigator

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

Marathon CeraShell Pilot's Navigator

41mm-cerashell-quartz-navigator-nav-on-ballistic-nylon-strap

MSRP $550

At a glance

13 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

CeraShell Pilot's Navigator41mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

CeraShell Pilot's Navigator40h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

CeraShell Pilot's Navigator60m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

CeraShell Pilot's Navigator$550

Full specifications

Case

6 specs

Crystal & Dial

2 specs

AR Coating

Yes

Inner

Lume

Super-LumiNova

None

Movement

4 specs

Caliber

SoProd M100

ETA F06

Type

Automatic

Quartz

Power Reserve

42h

40h

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$550

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