Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Lum-Tec B68 Day Date?

At MSRP the Lum-Tec B68 Day Date is the cheaper of the two at $595, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $1,410 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Lum-Tec B68 Day Date?

The Lum-Tec B68 Day Date wears larger at 44mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 5mm difference across the dial.

Which has better water resistance, the Serica Ref. 5330 Diving Chronometer Date or the Lum-Tec B68 Day Date?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 200m for the Lum-Tec B68 Day Date.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Lum-Tec B68 Day Date?

The Serica Ref. 5330 Diving Chronometer Date carries a 42-hour power reserve against 40 hours on the Lum-Tec B68 Day Date.

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Lum-Tec B68 Day Date?

The Serica Ref. 5330 Diving Chronometer Date runs a automatic caliber (SoProd M100), while the Lum-Tec B68 Day Date runs a quartz (Ronda 515).

Side by side

Serica Ref. 5330 Diving Chronometer DatevsLum-Tec B68 Day Date

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

Lum-Tec B68 Day Date

combat-b68

MSRP $595

At a glance

16 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

B68 Day Date44mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

B68 Day Date40h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

B68 Day Date200m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

B68 Day Date$595

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal

Sapphire

Domed Sapphire

AR Coating

Yes

Inner

Dial Color

Black

B68 Day Date

Lume

Super-LumiNova

None

Movement

4 specs

Caliber

SoProd M100

Ronda 515

Type

Automatic

Quartz

Power Reserve

42h

40h

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$595

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