Which is cheaper, the pOrtahl Zenmaster or the Seiko Prospex Land Mechanical?

At MSRP the pOrtahl Zenmaster is the cheaper of the two at $695, against $995 for the Seiko Prospex Land Mechanical — a $300 gap before any retailer discounting.

Which is bigger, the pOrtahl Zenmaster or the Seiko Prospex Land Mechanical?

The pOrtahl Zenmaster wears larger at 40.5mm versus 39.5mm for the Seiko Prospex Land Mechanical — a 1mm difference across the dial.

Which has better water resistance, the pOrtahl Zenmaster or the Seiko Prospex Land Mechanical?

The pOrtahl Zenmaster is rated to 100m versus 20m for the Seiko Prospex Land Mechanical.

Which has a longer power reserve, the pOrtahl Zenmaster or the Seiko Prospex Land Mechanical?

The Seiko Prospex Land Mechanical carries a 72-hour power reserve against 42 hours on the pOrtahl Zenmaster.

What movement does the pOrtahl Zenmaster run compared to the Seiko Prospex Land Mechanical?

Both watches run automatic movements — the pOrtahl Zenmaster uses the Miyota 9015 and the Seiko Prospex Land Mechanical uses the 6R55.

Side by side

pOrtahl ZenmastervsSeiko Prospex Land Mechanical

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

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pOrtahl Zenmaster

zenmaster-automatic-watch

MSRP $695

Seiko Prospex Land Mechanical

spb503j1

MSRP $995

At a glance

14 of 29 specs differ

Diameter

Zenmaster40.5mm

Prospex Land Mechanical39.5mm

Power Reserve

Zenmaster42h

Prospex Land Mechanical72h

Water Resistance

Zenmaster100m

Prospex Land Mechanical200m

MSRP

Zenmaster$695

Prospex Land Mechanical$995

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

—

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Miyota 9015

6R55

Power Reserve

42h

72h

Jewels

Pricing

1 specs

MSRP

$695

$995

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pOrtahl ZenmastervsSeiko Prospex Land Mechanical

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