Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Longines ULTRA-CHRON CLASSIC?

At MSRP the Serica Ref. 5330 Diving Chronometer Date is the cheaper of the two at $2,005, against $4,000 for the Longines ULTRA-CHRON CLASSIC — a $1,995 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Longines ULTRA-CHRON CLASSIC?

The Longines ULTRA-CHRON CLASSIC 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 Longines ULTRA-CHRON CLASSIC?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 30m for the Longines ULTRA-CHRON CLASSIC.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Longines ULTRA-CHRON CLASSIC?

The Longines ULTRA-CHRON CLASSIC 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 Longines ULTRA-CHRON CLASSIC?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Longines ULTRA-CHRON CLASSIC uses the L836.6.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsLongines ULTRA-CHRON CLASSIC

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

Longines ULTRA-CHRON CLASSIC

L2.937.4.72.6

MSRP $4,000

At a glance

20 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

ULTRA-CHRON CLASSIC40mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

ULTRA-CHRON CLASSIC72h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

ULTRA-CHRON CLASSIC30m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

ULTRA-CHRON CLASSIC$4,000

Full specifications

Case

8 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

—

AR Coating

Yes

Both sides

Dial Color

Black

Silver

Indices

Applied

Applied indexes

Movement

7 specs

Caliber

SoProd M100

L836.6

Beat Rate

28,800 vph

25,200 vph

Power Reserve

42h

72h

Jewels

Hacking

Yes

Hand-winding

Yes

Complications

COSC, Date

Hours, minutes, seconds, moon phase display and date indicated by small hand at

Pricing

1 specs

MSRP

$2,005

$4,000

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