Which is cheaper, the Omnis Sphère or the Seiko Prospex Land Mechanical?

At MSRP the Omnis Sphère is the cheaper of the two at $583, against $995 for the Seiko Prospex Land Mechanical — a $412 gap before any retailer discounting.

Which is bigger, the Omnis Sphère or the Seiko Prospex Land Mechanical?

The Omnis Sphère wears larger at 41.5mm versus 39.5mm for the Seiko Prospex Land Mechanical — a 2mm difference across the dial.

Which has better water resistance, the Omnis Sphère or the Seiko Prospex Land Mechanical?

The Omnis Sphère is rated to 50m versus 20m for the Seiko Prospex Land Mechanical.

Which has a longer power reserve, the Omnis Sphère or the Seiko Prospex Land Mechanical?

The Seiko Prospex Land Mechanical carries a 72-hour power reserve against 48 hours on the Omnis Sphère.

Side by side

Omnis SphèrevsSeiko Prospex Land Mechanical

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

Add a watch

Omnis Sphère

omnis-sphere-bleu-clair

MSRP $583

Seiko Prospex Land Mechanical

spb503j1

MSRP $995

At a glance

12 of 29 specs differ

Diameter

Sphère41.5mm

Prospex Land Mechanical39.5mm

Power Reserve

Sphère48h

Prospex Land Mechanical72h

Water Resistance

Sphère50m

Prospex Land Mechanical200m

MSRP

Sphère$583

Prospex Land Mechanical$995

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Blue

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

—

6R55

Power Reserve

48h

72h

Jewels

Pricing

1 specs

MSRP

$583

$995

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Omnis SphèrevsSeiko Prospex Land Mechanical

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