Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Seestern S456 GMT?

At MSRP the Seestern S456 GMT is the cheaper of the two at $299, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $1,706 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Seestern S456 GMT?

The Seestern S456 GMT wears larger at 41mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 2mm difference across the dial.

Which has better water resistance, the Serica Ref. 5330 Diving Chronometer Date or the Seestern S456 GMT?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 200m for the Seestern S456 GMT.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Seestern S456 GMT?

The Seestern S456 GMT carries a 41h-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 Seestern S456 GMT?

The Serica Ref. 5330 Diving Chronometer Date runs a automatic caliber (SoProd M100), while the Seestern S456 GMT runs a automatic gmt (Seiko NH34).

Side by side

Serica Ref. 5330 Diving Chronometer DatevsSeestern S456 GMT

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

Seestern S456 GMT

S456

MSRP $299

At a glance

16 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

S456 GMT41mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

S456 GMT41hh

Water Resistance

Ref. 5330 Diving Chronometer Date300m

S456 GMT200m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

S456 GMT$299

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Black

Sunray style, applied and Diamond cut Indices, C1 lume

Lume

Super-LumiNova

Movement

5 specs

Caliber

SoProd M100

Seiko NH34

Beat Rate

28,800 vph

3 vph

Power Reserve

42h

41hh

Jewels

Complications

COSC, Date

GMT

Pricing

1 specs

MSRP

$2,005

$299

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