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

At MSRP the Serica Ref. 5303 Diving Chronometer is the cheaper of the two at $1,768, against $1,980 for the CIGA Design BLACK STAR — a $212 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the CIGA Design BLACK STAR?

The CIGA Design BLACK STAR wears larger at 46mm versus 39mm for the Serica Ref. 5303 Diving Chronometer — a 7mm difference across the dial.

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

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

Which has a longer power reserve, the Serica Ref. 5303 Diving Chronometer or the CIGA Design BLACK STAR?

The Serica Ref. 5303 Diving Chronometer carries a 42-hour power reserve against 41 hours on the CIGA Design BLACK STAR.

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

Both watches run automatic movements — the Serica Ref. 5303 Diving Chronometer uses the M100 COSC and the CIGA Design BLACK STAR uses the CD-04-S.

Side by side

Serica Ref. 5303 Diving ChronometervsCIGA Design BLACK STAR

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 BLACK STAR

ciga-design-mechanical-watch-black-star

MSRP $1,980

At a glance

15 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

BLACK STAR46mm

Power Reserve

Ref. 5303 Diving Chronometer42h

BLACK STAR41h

Water Resistance

Ref. 5303 Diving Chronometer300m

BLACK STAR30m

MSRP

Ref. 5303 Diving Chronometer$1,768

BLACK STAR$1,980

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Enamel Black

—

Lume

Super-LumiNova

Swiss Super-LumiNova

Movement

4 specs

Caliber

M100 COSC

CD-04-S

Power Reserve

42h

41h

Jewels

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$1,980

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