Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the Cincinnati Watch Company Scottish Terrier #1?

At MSRP the Serica Ref. 5303 Diving Chronometer is the cheaper of the two at $1,768, against $1,995 for the Cincinnati Watch Company Scottish Terrier #1 — a $227 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the Cincinnati Watch Company Scottish Terrier #1?

The Serica Ref. 5303 Diving Chronometer wears larger at 39mm versus 38mm for the Cincinnati Watch Company Scottish Terrier #1 — a 1mm difference across the dial.

Which has better water resistance, the Serica Ref. 5303 Diving Chronometer or the Cincinnati Watch Company Scottish Terrier #1?

The Serica Ref. 5303 Diving Chronometer is rated to 300m versus 100m for the Cincinnati Watch Company Scottish Terrier #1.

Which has a longer power reserve, the Serica Ref. 5303 Diving Chronometer or the Cincinnati Watch Company Scottish Terrier #1?

The Cincinnati Watch Company Scottish Terrier #1 carries a 45-hour power reserve against 42 hours on the Serica Ref. 5303 Diving Chronometer.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the Cincinnati Watch Company Scottish Terrier #1?

The Serica Ref. 5303 Diving Chronometer runs a automatic caliber (M100 COSC), while the Cincinnati Watch Company Scottish Terrier #1 runs a manual (Sellita SW210-1).

Side by side

Serica Ref. 5303 Diving ChronometervsCincinnati Watch Company Scottish Terrier #1

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

Cincinnati Watch Company Scottish Terrier #1

irish-terrier-1

MSRP $1,995

At a glance

19 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

Scottish Terrier #138mm

Power Reserve

Ref. 5303 Diving Chronometer42h

Scottish Terrier #145h

Water Resistance

Ref. 5303 Diving Chronometer300m

Scottish Terrier #1100m

MSRP

Ref. 5303 Diving Chronometer$1,768

Scottish Terrier #1$1,995

Full specifications

Case

7 specs

Crystal & Dial

5 specs

Crystal Shape

Flat

Domed

AR Coating

Yes

Underside

Dial Color

Enamel Black

Silver

Indices

Applied

—

Lume

Super-LumiNova

None

Movement

6 specs

Caliber

M100 COSC

Sellita SW210-1

Type

Automatic

Manual

Beat Rate

28,800 vph

0 vph

Power Reserve

42h

45h

Jewels

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$1,995

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