Which is bigger, the Seiko Prospex Sea or the Henry Archer Sekvens?

The Seiko Prospex Sea wears larger at 42mm versus 40mm for the Henry Archer Sekvens — a 2mm difference across the dial.

Which has better water resistance, the Seiko Prospex Sea or the Henry Archer Sekvens?

The Seiko Prospex Sea is rated to 300m versus 50m for the Henry Archer Sekvens.

Which has a longer power reserve, the Seiko Prospex Sea or the Henry Archer Sekvens?

The Seiko Prospex Sea carries a 72-hour power reserve against 40 hours on the Henry Archer Sekvens.

What movement does the Seiko Prospex Sea run compared to the Henry Archer Sekvens?

Both watches run automatic movements — the Seiko Prospex Sea uses the 6R54 and the Henry Archer Sekvens uses the NH35A.

Side by side

Seiko Prospex SeavsHenry Archer Sekvens

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Seiko Prospex Sea

hbc001j1

Henry Archer Sekvens

5744002550013

MSRP $2,799

At a glance

14 of 29 specs differ

Diameter

Prospex Sea42mm

Sekvens40mm

Power Reserve

Prospex Sea72h

Sekvens40h

Water Resistance

Prospex Sea300m

Sekvens50m

MSRP

Prospex Sea—

Sekvens$2,799

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal

Sapphire

Domed Sapphire

AR Coating

Anti-reflective coating on inner surface

Inner

Dial Color

Black

Nero 40mm

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

3 specs

Caliber

6R54

NH35A

Power Reserve

72h

40h

Jewels

Pricing

1 specs

MSRP

—

$2,799

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Seiko Prospex SeavsHenry Archer Sekvens

At a glance

Full specifications

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