Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Helgray Poseidon Diver (Automatic)?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $1,756 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) wears larger at 40mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 1mm difference across the dial.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Helgray Poseidon Diver (Automatic)?

The Serica Ref. 5330 Diving Chronometer Date carries a 42-hour power reserve against 40 hours on the Helgray Poseidon Diver (Automatic).

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Helgray Poseidon Diver (Automatic)?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsHelgray Poseidon Diver (Automatic)

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

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

At a glance

9 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

Poseidon Diver (Automatic)40mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

Poseidon Diver (Automatic)40h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

Poseidon Diver (Automatic)300m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

Poseidon Diver (Automatic)$249

Full specifications

Case

3 specs

Diameter

39mm

40mm

Thickness

12.2mm

12mm

Lug-to-Lug

46.5mm

46mm

Crystal & Dial

2 specs

AR Coating

Yes

Inner

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

SoProd M100

NH35 Warranty

Power Reserve

42h

40h

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$249

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