Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the CIGA Design MACHINA?

At MSRP the CIGA Design MACHINA is the cheaper of the two at $399, against $1,768 for the Serica Ref. 5303 Diving Chronometer — a $1,369 gap before any retailer discounting.

Which has better water resistance, the Serica Ref. 5303 Diving Chronometer or the CIGA Design MACHINA?

The Serica Ref. 5303 Diving Chronometer is rated to 300m versus 30m for the CIGA Design MACHINA.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the CIGA Design MACHINA?

Both watches run automatic movements — the Serica Ref. 5303 Diving Chronometer uses the M100 COSC and the CIGA Design MACHINA uses the CD-01.

Side by side

Serica Ref. 5303 Diving ChronometervsCIGA Design MACHINA

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

CIGA Design MACHINA

ciga-design-mechanical-watch-series-x-machina

MSRP $399

At a glance

15 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

MACHINA—

Power Reserve

Ref. 5303 Diving Chronometer42h

MACHINA—

Water Resistance

Ref. 5303 Diving Chronometer300m

MACHINA30m

MSRP

Ref. 5303 Diving Chronometer$1,768

MACHINA$399

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Enamel Black

White

Lume

Super-LumiNova

Swiss Super-LumiNova material for long-lasting night visibility

Movement

4 specs

Caliber

M100 COSC

CD-01

Power Reserve

42h

—

Jewels

—

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$399

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