Which is cheaper, the Praesidus Low W&t 38mm or the Seiko Prospex SPEEDTIMER Mechanical?

At MSRP the Praesidus Low W&t 38mm is the cheaper of the two at $550, against $995 for the Seiko Prospex SPEEDTIMER Mechanical — a $445 gap before any retailer discounting.

Which is bigger, the Praesidus Low W&t 38mm or the Seiko Prospex SPEEDTIMER Mechanical?

The Seiko Prospex SPEEDTIMER Mechanical wears larger at 39.5mm versus 38mm for the Praesidus Low W&t 38mm — a 1.5mm difference across the dial.

Which has better water resistance, the Praesidus Low W&t 38mm or the Seiko Prospex SPEEDTIMER Mechanical?

The Praesidus Low W&t 38mm is rated to 100m versus 20m for the Seiko Prospex SPEEDTIMER Mechanical.

Which has a longer power reserve, the Praesidus Low W&t 38mm or the Seiko Prospex SPEEDTIMER Mechanical?

The Seiko Prospex SPEEDTIMER Mechanical carries a 72-hour power reserve against 40 hours on the Praesidus Low W&t 38mm.

What movement does the Praesidus Low W&t 38mm run compared to the Seiko Prospex SPEEDTIMER Mechanical?

Both watches run automatic movements — the Praesidus Low W&t 38mm uses the Seiko NH35 and the Seiko Prospex SPEEDTIMER Mechanical uses the 6R55.

Side by side

Praesidus Low W&t 38mmvsSeiko Prospex SPEEDTIMER Mechanical

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

Praesidus Low W&t 38mm

P-38-C47-C-DBRSG

MSRP $550

Seiko Prospex SPEEDTIMER Mechanical

spb513j1

MSRP $995

At a glance

15 of 29 specs differ

Diameter

Low W&t 38mm38mm

Prospex SPEEDTIMER Mechanical39.5mm

Power Reserve

Low W&t 38mm40h

Prospex SPEEDTIMER Mechanical72h

Water Resistance

Low W&t 38mm100m

Prospex SPEEDTIMER Mechanical200m

MSRP

Low W&t 38mm$550

Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

Low W&T 38mm

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Seiko NH35

6R55

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$550

$995

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