Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Seiko Prospex SPEEDTIMER?

At MSRP the Serica Ref. 5330 Diving Chronometer Date is the cheaper of the two at $2,005, against $3,000 for the Seiko Prospex SPEEDTIMER — a $995 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Seiko Prospex SPEEDTIMER?

The Seiko Prospex SPEEDTIMER wears larger at 42.5mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 3.5mm difference across the dial.

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

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 10m for the Seiko Prospex SPEEDTIMER.

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

The Seiko Prospex SPEEDTIMER carries a 45-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 Seiko Prospex SPEEDTIMER?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Seiko Prospex SPEEDTIMER uses the 8R46.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsSeiko Prospex SPEEDTIMER

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

Seiko Prospex SPEEDTIMER

srq037j1

MSRP $3,000

At a glance

13 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

Prospex SPEEDTIMER42.5mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

Prospex SPEEDTIMER45h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

Prospex SPEEDTIMER100m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

Prospex SPEEDTIMER$3,000

Full specifications

Case

5 specs

Crystal & Dial

3 specs

Crystal Shape

Flat

Curved

AR Coating

Yes

Anti-reflective coating on inner surface

Lume

Super-LumiNova

LumiBrite on hands and index(es)

Movement

4 specs

Caliber

SoProd M100

8R46

Power Reserve

42h

45h

Jewels

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$3,000

Follow this matchup

Get a note when Serica Ref. 5330 Diving Chronometer Date vs Seiko Prospex SPEEDTIMER gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring