Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the Gravithin FOCUSCOPE - BLUE COSMO?

At MSRP the Gravithin FOCUSCOPE - BLUE COSMO is the cheaper of the two at $579, against $1,768 for the Serica Ref. 5303 Diving Chronometer — a $1,189 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the Gravithin FOCUSCOPE - BLUE COSMO?

The Gravithin FOCUSCOPE - BLUE COSMO wears larger at 40mm versus 39mm for the Serica Ref. 5303 Diving Chronometer — a 1mm difference across the dial.

Which has better water resistance, the Serica Ref. 5303 Diving Chronometer or the Gravithin FOCUSCOPE - BLUE COSMO?

The Serica Ref. 5303 Diving Chronometer is rated to 300m versus 100m for the Gravithin FOCUSCOPE - BLUE COSMO.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the Gravithin FOCUSCOPE - BLUE COSMO?

Both watches run automatic movements — the Serica Ref. 5303 Diving Chronometer uses the M100 COSC and the Gravithin FOCUSCOPE - BLUE COSMO uses the Miyota 9039.

Side by side

Serica Ref. 5303 Diving ChronometervsGravithin FOCUSCOPE - BLUE COSMO

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

Add a watch

Serica Ref. 5303 Diving Chronometer

5303-1-diving-chronometer

MSRP $1,768

Gravithin FOCUSCOPE - BLUE COSMO

focuscope-cosmo-blue

MSRP $579

At a glance

11 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

FOCUSCOPE - BLUE COSMO40mm

Power Reserve

Ref. 5303 Diving Chronometer42h

FOCUSCOPE - BLUE COSMO42h

Water Resistance

Ref. 5303 Diving Chronometer300m

FOCUSCOPE - BLUE COSMO100m

MSRP

Ref. 5303 Diving Chronometer$1,768

FOCUSCOPE - BLUE COSMO$579

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Enamel Black

Black

Lume

Super-LumiNova

super luminova

Movement

2 specs

Caliber

M100 COSC

Miyota 9039

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

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Serica Ref. 5303 Diving ChronometervsGravithin FOCUSCOPE - BLUE COSMO

At a glance

Full specifications

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