Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the Sugess Tourbillon Master SU8000?

At MSRP the Sugess Tourbillon Master SU8000 is the cheaper of the two at $999, against $1,768 for the Serica Ref. 5303 Diving Chronometer — a $769 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the Sugess Tourbillon Master SU8000?

The Sugess Tourbillon Master SU8000 wears larger at 41mm versus 39mm for the Serica Ref. 5303 Diving Chronometer — a 2mm difference across the dial.

Which has better water resistance, the Serica Ref. 5303 Diving Chronometer or the Sugess Tourbillon Master SU8000?

The Serica Ref. 5303 Diving Chronometer is rated to 300m versus 50m for the Sugess Tourbillon Master SU8000.

Which has a longer power reserve, the Serica Ref. 5303 Diving Chronometer or the Sugess Tourbillon Master SU8000?

The Serica Ref. 5303 Diving Chronometer carries a 42-hour power reserve against 40 hours on the Sugess Tourbillon Master SU8000.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the Sugess Tourbillon Master SU8000?

The Serica Ref. 5303 Diving Chronometer runs a automatic caliber (M100 COSC), while the Sugess Tourbillon Master SU8000 runs a manual tourbillon (Seagull ST8000).

Side by side

Serica Ref. 5303 Diving ChronometervsSugess Tourbillon Master SU8000

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

Sugess Tourbillon Master SU8000

SU8000

MSRP $999

At a glance

17 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

Tourbillon Master SU800041mm

Power Reserve

Ref. 5303 Diving Chronometer42h

Tourbillon Master SU800040h

Water Resistance

Ref. 5303 Diving Chronometer300m

Tourbillon Master SU800050m

MSRP

Ref. 5303 Diving Chronometer$1,768

Tourbillon Master SU8000$999

Full specifications

Case

8 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Enamel Black

Blue

Lume

Super-LumiNova

None

Movement

5 specs

Caliber

M100 COSC

Seagull ST8000

Type

Automatic

Manual

Beat Rate

28,800 vph

3 vph

Power Reserve

42h

40h

Complications

COSC

GMT, Moonphase, Date

Pricing

1 specs

MSRP

$1,768

$999

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