Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the CWC RN81 Clearance Diver Automatic Watch?

At MSRP the CWC RN81 Clearance Diver Automatic Watch is the cheaper of the two at $1,875, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $130 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the CWC RN81 Clearance Diver Automatic Watch?

The CWC RN81 Clearance Diver Automatic Watch wears larger at 41mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 2mm difference across the dial.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the CWC RN81 Clearance Diver Automatic Watch?

The Serica Ref. 5330 Diving Chronometer Date carries a 42-hour power reserve against 40 hours on the CWC RN81 Clearance Diver Automatic Watch.

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the CWC RN81 Clearance Diver Automatic Watch?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the CWC RN81 Clearance Diver Automatic Watch uses the Sellita SW200-1.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsCWC RN81 Clearance Diver Automatic Watch

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

CWC RN81 Clearance Diver Automatic Watch

cwc-rn81-clearance-diver-watch

MSRP $1,875

At a glance

9 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

RN81 Clearance Diver Automatic Watch41mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

RN81 Clearance Diver Automatic Watch40h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

RN81 Clearance Diver Automatic Watch300m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

RN81 Clearance Diver Automatic Watch$1,875

Full specifications

Case

3 specs

Diameter

39mm

41mm

Thickness

12.2mm

12mm

Lug-to-Lug

46.5mm

47mm

Crystal & Dial

2 specs

AR Coating

Yes

Inner

Dial Color

Black

CWC RN81 Clearance Diver Automatic Watch

Movement

3 specs

Caliber

SoProd M100

Sellita SW200-1

Power Reserve

42h

40h

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$1,875

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