Which is cheaper, the Praesidus 42mm Automatic or the Seiko Prospex Sea The Black Series?

At MSRP the Praesidus 42mm Automatic is the cheaper of the two at $269, against $765 for the Seiko Prospex Sea The Black Series — a $496 gap before any retailer discounting.

Which is bigger, the Praesidus 42mm Automatic or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series wears larger at 45mm versus 38mm for the Praesidus 42mm Automatic — a 7mm difference across the dial.

Which has better water resistance, the Praesidus 42mm Automatic or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series is rated to 200m versus 100m for the Praesidus 42mm Automatic.

Which has a longer power reserve, the Praesidus 42mm Automatic or the Seiko Prospex Sea The Black Series?

The Seiko Prospex Sea The Black Series carries a 41-hour power reserve against 40 hours on the Praesidus 42mm Automatic.

What movement does the Praesidus 42mm Automatic run compared to the Seiko Prospex Sea The Black Series?

Both watches run automatic movements — the Praesidus 42mm Automatic uses the Seiko NH35 and the Seiko Prospex Sea The Black Series uses the 4R36.

Side by side

Praesidus 42mm AutomaticvsSeiko Prospex Sea The Black Series

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

Praesidus 42mm Automatic

P-42-TR-MIC-DBRAG

MSRP $269

Seiko Prospex Sea The Black Series

srpk43

MSRP $765

At a glance

14 of 29 specs differ

Diameter

42mm Automatic38mm

Prospex Sea The Black Series45mm

Power Reserve

42mm Automatic40h

Prospex Sea The Black Series41h

Water Resistance

42mm Automatic100m

Prospex Sea The Black Series200m

MSRP

42mm Automatic$269

Prospex Sea The Black Series$765

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

42mm Automatic

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Seiko NH35

4R36

Power Reserve

40h

41h

Jewels

Pricing

1 specs

MSRP

$269

$765

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