Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Borealis Watch Co. Neptuno?

At MSRP the Borealis Watch Co. Neptuno is the cheaper of the two at $390, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $1,615 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Borealis Watch Co. Neptuno?

The Borealis Watch Co. Neptuno wears larger at 40.00mm 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 Borealis Watch Co. Neptuno?

The Serica Ref. 5330 Diving Chronometer Date carries a 42-hour power reserve against 40 hours on the Borealis Watch Co. Neptuno.

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Borealis Watch Co. Neptuno?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Borealis Watch Co. Neptuno uses the NH38.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsBorealis Watch Co. Neptuno

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

Borealis Watch Co.Neptuno

borealis-neptuno-red-fade-to-black-dial-no-date-nh38-automatic-movement-300m-diver-watch

MSRP $390

At a glance

10 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

Neptuno40.00mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

Neptuno40h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

Neptuno300m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

Neptuno$390

Full specifications

Case

4 specs

Diameter

39mm

40.00mm

Thickness

12.2mm

14.10mm

Lug-to-Lug

46.5mm

47.20mm

Lug Width

20mm

Crystal & Dial

2 specs

AR Coating

Yes

Inner

Lume

Super-LumiNova

BGW9

Movement

3 specs

Caliber

SoProd M100

NH38

Power Reserve

42h

40h

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$390

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