Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the Spinnaker Tesei Forged Carbon?

At MSRP the Spinnaker Tesei Forged Carbon is the cheaper of the two at $550, against $1,768 for the Serica Ref. 5303 Diving Chronometer — a $1,218 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the Spinnaker Tesei Forged Carbon?

The Spinnaker Tesei Forged Carbon wears larger at 43mm versus 39mm for the Serica Ref. 5303 Diving Chronometer — a 4mm difference across the dial.

Which has a longer power reserve, the Serica Ref. 5303 Diving Chronometer or the Spinnaker Tesei Forged Carbon?

The Serica Ref. 5303 Diving Chronometer carries a 42-hour power reserve against 40 hours on the Spinnaker Tesei Forged Carbon.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the Spinnaker Tesei Forged Carbon?

Both watches run automatic movements — the Serica Ref. 5303 Diving Chronometer uses the M100 COSC and the Spinnaker Tesei Forged Carbon uses the SII NH35A.

Side by side

Serica Ref. 5303 Diving ChronometervsSpinnaker Tesei Forged Carbon

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Serica Ref. 5303 Diving Chronometer

5303-1-diving-chronometer

MSRP $1,768

Spinnaker Tesei Forged Carbon

tesei-forged-carbon-automatic-limited-edition-white-frost-sp-5143-01

MSRP $550

At a glance

12 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

Tesei Forged Carbon43mm

Power Reserve

Ref. 5303 Diving Chronometer42h

Tesei Forged Carbon40h

Water Resistance

Ref. 5303 Diving Chronometer300m

Tesei Forged Carbon300m

MSRP

Ref. 5303 Diving Chronometer$1,768

Tesei Forged Carbon$550

Full specifications

Case

5 specs

Diameter

39mm

43mm

Thickness

12.2mm

16mm

Lug-to-Lug

46.5mm

52mm

Lug Width

20mm

22mm

Material

Stainless Steel

316L Stainless Steel

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Enamel Black

White

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

M100 COSC

SII NH35A

Power Reserve

42h

40h

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$550

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