Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the Tuseno Blackwater?

At MSRP the Tuseno Blackwater 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 Tuseno Blackwater?

The Tuseno Blackwater wears larger at 40.5mm versus 39mm for the Serica Ref. 5303 Diving Chronometer — a 1.5mm difference across the dial.

Which has better water resistance, the Serica Ref. 5303 Diving Chronometer or the Tuseno Blackwater?

The Serica Ref. 5303 Diving Chronometer is rated to 300m versus 200m for the Tuseno Blackwater.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the Tuseno Blackwater?

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

Side by side

Serica Ref. 5303 Diving ChronometervsTuseno Blackwater

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

Tuseno Blackwater

blackwater

MSRP $999

At a glance

13 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

Blackwater40.5mm

Power Reserve

Ref. 5303 Diving Chronometer42h

Blackwater—

Water Resistance

Ref. 5303 Diving Chronometer300m

Blackwater200m

MSRP

Ref. 5303 Diving Chronometer$1,768

Blackwater$999

Full specifications

Case

6 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Enamel Black

Black

Lume

Super-LumiNova

BGW9 Swiss Super-LumiNova

Movement

3 specs

Caliber

M100 COSC

SW200-1

Power Reserve

42h

—

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$999

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Serica Ref. 5303 Diving ChronometervsTuseno Blackwater

At a glance

Full specifications

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