Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Grand Seiko SBGM221?

At MSRP the Serica Ref. 5330 Diving Chronometer Date is the cheaper of the two at $2,005, against $5,400 for the Grand Seiko SBGM221 — a $3,395 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Grand Seiko SBGM221?

The Grand Seiko SBGM221 wears larger at 39.5mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 0.5mm difference across the dial.

Which has better water resistance, the Serica Ref. 5330 Diving Chronometer Date or the Grand Seiko SBGM221?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 30m for the Grand Seiko SBGM221.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Grand Seiko SBGM221?

The Grand Seiko SBGM221 carries a 72-hour power reserve against 42 hours on the Serica Ref. 5330 Diving Chronometer Date.

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Grand Seiko SBGM221?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Grand Seiko SBGM221 uses the 9S66.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsGrand Seiko SBGM221

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

Grand Seiko SBGM221

sbgm221g

MSRP $5,400

At a glance

11 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

SBGM22139.5mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

SBGM22172h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

SBGM22130m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

SBGM221$5,400

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

SoProd M100

9S66

Power Reserve

42h

72h

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$5,400

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