Which is cheaper, the Praesidus 42mm Automatic or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

At MSRP the Praesidus 42mm Automatic is the cheaper of the two at $269, against $1,300 for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a $1,031 gap before any retailer discounting.

Which is bigger, the Praesidus 42mm Automatic or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Seiko Prospex Sea 1965 Heritage Diver's Watch wears larger at 40mm versus 38mm for the Praesidus 42mm Automatic — a 2mm difference across the dial.

Which has better water resistance, the Praesidus 42mm Automatic or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Seiko Prospex Sea 1965 Heritage Diver's Watch is rated to 300m versus 100m for the Praesidus 42mm Automatic.

Which has a longer power reserve, the Praesidus 42mm Automatic or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Seiko Prospex Sea 1965 Heritage Diver's Watch carries a 72-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 1965 Heritage Diver's Watch?

Both watches run automatic movements — the Praesidus 42mm Automatic uses the Seiko NH35 and the Seiko Prospex Sea 1965 Heritage Diver's Watch uses the 6R55.

Side by side

Praesidus 42mm AutomaticvsSeiko Prospex Sea 1965 Heritage Diver's Watch

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 1965 Heritage Diver's Watch

spb451j1

MSRP $1,300

At a glance

15 of 29 specs differ

Diameter

42mm Automatic38mm

Prospex Sea 1965 Heritage Diver's Watch40mm

Power Reserve

42mm Automatic40h

Prospex Sea 1965 Heritage Diver's Watch72h

Water Resistance

42mm Automatic100m

Prospex Sea 1965 Heritage Diver's Watch300m

MSRP

42mm Automatic$269

Prospex Sea 1965 Heritage Diver's Watch$1,300

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

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

6R55

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$269

$1,300

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