Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Marathon Steel Navigator SSNAV Auto?

At MSRP the Marathon Steel Navigator SSNAV Auto is the cheaper of the two at $1,300, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $705 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Marathon Steel Navigator SSNAV Auto?

The Marathon Steel Navigator SSNAV Auto 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 Steel Navigator SSNAV Auto?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 60m for the Marathon Steel Navigator SSNAV Auto.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Marathon Steel Navigator SSNAV Auto?

The Serica Ref. 5330 Diving Chronometer Date carries a 42-hour power reserve against 40 hours on the Marathon Steel Navigator SSNAV Auto.

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Marathon Steel Navigator SSNAV Auto?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Marathon Steel Navigator SSNAV Auto uses the Sellita SW200-1.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsMarathon Steel Navigator SSNAV Auto

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 Steel Navigator SSNAV Auto

41mm-steel-navigator-automatic-ssnav-auto-on-ballistic-nylon

MSRP $1,300

At a glance

12 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

Steel Navigator SSNAV Auto41mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

Steel Navigator SSNAV Auto40h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

Steel Navigator SSNAV Auto60m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

Steel Navigator SSNAV Auto$1,300

Full specifications

Case

6 specs

Crystal & Dial

2 specs

AR Coating

Yes

Inner

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

SoProd M100

Sellita SW200-1

Power Reserve

42h

40h

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$1,300

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