Which is cheaper, the Praesidus 42mm Automatic or the Grand Seiko SLGB023?

At MSRP the Praesidus 42mm Automatic is the cheaper of the two at $680, against $12,400 for the Grand Seiko SLGB023 — a $11,720 gap before any retailer discounting.

Which is bigger, the Praesidus 42mm Automatic or the Grand Seiko SLGB023?

The Grand Seiko SLGB023 wears larger at 40.8mm versus 38mm for the Praesidus 42mm Automatic — a 2.8mm difference across the dial.

Which has better water resistance, the Praesidus 42mm Automatic or the Grand Seiko SLGB023?

The Grand Seiko SLGB023 is rated to 300m versus 100m for the Praesidus 42mm Automatic.

Which has a longer power reserve, the Praesidus 42mm Automatic or the Grand Seiko SLGB023?

The Grand Seiko SLGB023 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 Grand Seiko SLGB023?

The Praesidus 42mm Automatic runs a automatic caliber (Seiko NH35), while the Grand Seiko SLGB023 runs a spring drive (9RB1).

Side by side

Praesidus 42mm AutomaticvsGrand Seiko SLGB023

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

Praesidus 42mm Automatic

P-42-HP-GRSG

MSRP $680

Grand Seiko SLGB023

slgb023g

MSRP $12,400

At a glance

13 of 29 specs differ

Diameter

42mm Automatic38mm

SLGB02340.8mm

Power Reserve

42mm Automatic40h

SLGB02372h

Water Resistance

42mm Automatic100m

SLGB023300m

MSRP

42mm Automatic$680

SLGB023$12,400

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Dial Color

42mm Automatic

Black

Movement

3 specs

Caliber

Seiko NH35

9RB1

Type

Automatic

Spring Drive

Power Reserve

40h

72h

Pricing

1 specs

MSRP

$680

$12,400

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Praesidus 42mm AutomaticvsGrand Seiko SLGB023

At a glance

Full specifications

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