Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the Henry Archer Relativ?

At MSRP the Serica Ref. 5303 Diving Chronometer is the cheaper of the two at $1,768, against $2,199 for the Henry Archer Relativ — a $431 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the Henry Archer Relativ?

The Henry Archer Relativ 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 Henry Archer Relativ?

The Serica Ref. 5303 Diving Chronometer carries a 42-hour power reserve against 40 hours on the Henry Archer Relativ.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the Henry Archer Relativ?

The Serica Ref. 5303 Diving Chronometer runs a automatic caliber (M100 COSC), while the Henry Archer Relativ runs a quartz.

Side by side

Serica Ref. 5303 Diving ChronometervsHenry Archer Relativ

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

Henry Archer Relativ

HAC-REL-SKO-NRO

MSRP $2,199

At a glance

13 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

Relativ40mm

Power Reserve

Ref. 5303 Diving Chronometer42h

Relativ40h

Water Resistance

Ref. 5303 Diving Chronometer300m

Relativ—

MSRP

Ref. 5303 Diving Chronometer$1,768

Relativ$2,199

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Enamel Black

Nero 40mm

Lume

Super-LumiNova

None

Movement

4 specs

Caliber

M100 COSC

—

Type

Automatic

Quartz

Power Reserve

42h

40h

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$2,199

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