Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the Bremont Longitude Limited Edition?

At MSRP the Serica Ref. 5303 Diving Chronometer is the cheaper of the two at $1,768, against $18,100 for the Bremont Longitude Limited Edition — a $16,332 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the Bremont Longitude Limited Edition?

The Bremont Longitude Limited Edition wears larger at 40mm versus 39mm for the Serica Ref. 5303 Diving Chronometer — a 1mm difference across the dial.

Which has a longer power reserve, the Serica Ref. 5303 Diving Chronometer or the Bremont Longitude Limited Edition?

The Serica Ref. 5303 Diving Chronometer carries a 42-hour power reserve against 40 hours on the Bremont Longitude Limited Edition.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the Bremont Longitude Limited Edition?

Both watches run automatic movements — the Serica Ref. 5303 Diving Chronometer uses the M100 COSC and the Bremont Longitude Limited Edition uses the ENG300.

Side by side

Serica Ref. 5303 Diving ChronometervsBremont Longitude Limited Edition

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

Bremont Longitude Limited Edition

longitude-steel

MSRP $18,100

At a glance

12 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

Longitude Limited Edition40mm

Power Reserve

Ref. 5303 Diving Chronometer42h

Longitude Limited Edition40h

Water Resistance

Ref. 5303 Diving Chronometer300m

Longitude Limited Edition—

MSRP

Ref. 5303 Diving Chronometer$1,768

Longitude Limited Edition$18,100

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Enamel Black

Steel

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

M100 COSC

ENG300

Power Reserve

42h

40h

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$18,100

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