Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the Pinion Reaxis?

At MSRP the Pinion Reaxis is the cheaper of the two at $1,257, against $1,768 for the Serica Ref. 5303 Diving Chronometer — a $511 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the Pinion Reaxis?

The Pinion Reaxis wears larger at 42mm versus 39mm for the Serica Ref. 5303 Diving Chronometer — a 3mm difference across the dial.

Which has better water resistance, the Serica Ref. 5303 Diving Chronometer or the Pinion Reaxis?

The Serica Ref. 5303 Diving Chronometer is rated to 300m versus 100m for the Pinion Reaxis.

Which has a longer power reserve, the Serica Ref. 5303 Diving Chronometer or the Pinion Reaxis?

The Serica Ref. 5303 Diving Chronometer carries a 42-hour power reserve against 40 hours on the Pinion Reaxis.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the Pinion Reaxis?

Both watches run automatic movements — the Serica Ref. 5303 Diving Chronometer uses the M100 COSC and the Pinion Reaxis uses the Sellita SW200-1.

Side by side

Serica Ref. 5303 Diving ChronometervsPinion Reaxis

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

Pinion Reaxis

reaxis-anthracite-42mm-automatic-watch

MSRP $1,257

At a glance

11 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

Reaxis42mm

Power Reserve

Ref. 5303 Diving Chronometer42h

Reaxis40h

Water Resistance

Ref. 5303 Diving Chronometer300m

Reaxis100m

MSRP

Ref. 5303 Diving Chronometer$1,768

Reaxis$1,257

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Dial Color

Enamel Black

Black

Movement

3 specs

Caliber

M100 COSC

Sellita SW200-1

Power Reserve

42h

40h

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$1,257

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Serica Ref. 5303 Diving ChronometervsPinion Reaxis

At a glance

Full specifications

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