Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Orient Kamasu?

At MSRP the Orient Kamasu is the cheaper of the two at $375, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $1,630 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Orient Kamasu?

The Orient Kamasu wears larger at 41.8mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 2.8mm difference across the dial.

Which has better water resistance, the Serica Ref. 5330 Diving Chronometer Date or the Orient Kamasu?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 200m for the Orient Kamasu.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Orient Kamasu?

The Serica Ref. 5330 Diving Chronometer Date carries a 42-hour power reserve against 40 hours on the Orient Kamasu.

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Orient Kamasu?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Orient Kamasu uses the F6922.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsOrient Kamasu

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

Orient Kamasu

ra-aa0001b39b

MSRP $375

At a glance

15 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

Kamasu41.8mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

Kamasu40h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

Kamasu200m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

Kamasu$375

Full specifications

Case

5 specs

Diameter

39mm

41.8mm

Thickness

12.2mm

12.8mm

Lug-to-Lug

46.5mm

47mm

Lug Width

20mm

22mm

Water Resistance

300m

200m

Crystal & Dial

4 specs

Crystal Shape

Flat

—

AR Coating

Yes

—

Indices

Applied

—

Lume

Super-LumiNova

None

Movement

5 specs

Caliber

SoProd M100

F6922

Beat Rate

28,800 vph

21,600 vph

Power Reserve

42h

40h

Jewels

Complications

COSC, Date

Day-date

Pricing

1 specs

MSRP

$2,005

$375

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