Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Grand Seiko SBGM245?

At MSRP the Serica Ref. 5330 Diving Chronometer Date is the cheaper of the two at $2,005, against $6,100 for the Grand Seiko SBGM245 — a $4,095 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Grand Seiko SBGM245?

The Grand Seiko SBGM245 wears larger at 40.5mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 1.5mm difference across the dial.

Which has better water resistance, the Serica Ref. 5330 Diving Chronometer Date or the Grand Seiko SBGM245?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 200m for the Grand Seiko SBGM245.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Grand Seiko SBGM245?

The Grand Seiko SBGM245 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 SBGM245?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Grand Seiko SBGM245 uses the 9S66.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsGrand Seiko SBGM245

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 SBGM245

sbgm245g

MSRP $6,100

At a glance

10 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

SBGM24540.5mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

SBGM24572h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

SBGM245200m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

SBGM245$6,100

Full specifications

Case

5 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

$6,100

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