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

At MSRP the Serica Ref. 5303 Diving Chronometer is the cheaper of the two at $1,768, against $2,799 for the Henry Archer Sekvens — a $1,031 gap before any retailer discounting.

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

The Henry Archer Sekvens wears larger at 40mm versus 39mm for the Serica Ref. 5303 Diving Chronometer — a 1mm difference across the dial.

Which has better water resistance, the Serica Ref. 5303 Diving Chronometer or the Henry Archer Sekvens?

The Serica Ref. 5303 Diving Chronometer is rated to 300m versus 50m for the Henry Archer Sekvens.

Which has a longer power reserve, the Serica Ref. 5303 Diving Chronometer or the Henry Archer Sekvens?

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

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

Both watches run automatic movements — the Serica Ref. 5303 Diving Chronometer uses the M100 COSC and the Henry Archer Sekvens uses the NH35A.

Side by side

Serica Ref. 5303 Diving ChronometervsHenry Archer Sekvens

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 Sekvens

5744002550013

MSRP $2,799

At a glance

14 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

Sekvens40mm

Power Reserve

Ref. 5303 Diving Chronometer42h

Sekvens40h

Water Resistance

Ref. 5303 Diving Chronometer300m

Sekvens50m

MSRP

Ref. 5303 Diving Chronometer$1,768

Sekvens$2,799

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal

Sapphire

Domed Sapphire

AR Coating

Yes

Inner

Dial Color

Enamel Black

Nero 40mm

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

M100 COSC

NH35A

Power Reserve

42h

40h

Complications

COSC

None

Pricing

1 specs

MSRP

$1,768

$2,799

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