Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Boldr Blastoise?

At MSRP the Boldr Blastoise is the cheaper of the two at $449, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $1,556 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Boldr Blastoise?

The Boldr Blastoise wears larger at 40mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 1mm difference across the dial.

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

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

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

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

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Boldr Blastoise?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Boldr Blastoise uses the Seiko (SII) NH37.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsBoldr Blastoise

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

Boldr Blastoise

blastoise

MSRP $449

At a glance

10 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

Blastoise40mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

Blastoise40h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

Blastoise200m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

Blastoise$449

Full specifications

Case

4 specs

Diameter

39mm

40mm

Thickness

12.2mm

12mm

Lug-to-Lug

46.5mm

49.5mm

Water Resistance

300m

200m

Crystal & Dial

2 specs

AR Coating

Yes

Inner

Dial Color

Black

Blastoise

Movement

3 specs

Caliber

SoProd M100

Seiko (SII) NH37

Power Reserve

42h

40h

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$449

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