Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Seiko 5KX?

At MSRP the Seiko 5KX is the cheaper of the two at $350, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $1,655 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Seiko 5KX?

The Seiko 5KX wears larger at 42.5mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 3.5mm difference across the dial.

Which has better water resistance, the Serica Ref. 5330 Diving Chronometer Date or the Seiko 5KX?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 10m for the Seiko 5KX.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Seiko 5KX?

The Serica Ref. 5330 Diving Chronometer Date carries a 42-hour power reserve against 41 hours on the Seiko 5KX.

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Seiko 5KX?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Seiko 5KX uses the 4R36.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsSeiko 5KX

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

Seiko 5KX

srpd51

MSRP $350

At a glance

13 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

5KX42.5mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

5KX41h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

5KX100m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

5KX$350

Full specifications

Case

5 specs

Diameter

39mm

42.5mm

Thickness

12.2mm

13.4mm

Lug-to-Lug

46.5mm

46mm

Lug Width

20mm

22mm

Water Resistance

300m

100m

Crystal & Dial

3 specs

Crystal

Sapphire

Hardlex

AR Coating

Yes

Inner

Lume

Super-LumiNova

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

SoProd M100

4R36

Power Reserve

42h

41h

Jewels

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$350

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Serica Ref. 5330 Diving Chronometer DatevsSeiko 5KX

At a glance

Full specifications

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