Which is cheaper, the Signum Cuda GMT or the Grand Seiko SLGB023?

At MSRP the Signum Cuda GMT is the cheaper of the two at $499, against $12,400 for the Grand Seiko SLGB023 — a $11,901 gap before any retailer discounting.

Which is bigger, the Signum Cuda GMT or the Grand Seiko SLGB023?

The Signum Cuda GMT wears larger at 42.5mm versus 40.8mm for the Grand Seiko SLGB023 — a 1.7mm difference across the dial.

Which has better water resistance, the Signum Cuda GMT or the Grand Seiko SLGB023?

The Grand Seiko SLGB023 is rated to 300m versus 200m for the Signum Cuda GMT.

What movement does the Signum Cuda GMT run compared to the Grand Seiko SLGB023?

The Signum Cuda GMT runs a automatic caliber (Seiko NH34), while the Grand Seiko SLGB023 runs a spring drive (9RB1).

Side by side

Signum Cuda GMTvsGrand Seiko SLGB023

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

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Signum Cuda GMT

signum-cuda-titanium-gmt-full-lume-collection

MSRP $499

Grand Seiko SLGB023

slgb023g

MSRP $12,400

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Buy from Grand Seiko ↗

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At a glance

13 of 29 specs differ

Diameter

Cuda GMT42.5mm

SLGB02340.8mm

Power Reserve

Cuda GMT—

SLGB02372h

Water Resistance

Cuda GMT200m

SLGB023300m

MSRP

Cuda GMT$499

SLGB023$12,400

Full specifications

Case

6 specs

Crystal & Dial

3 specs

AR Coating

Inner

Yes

Dial Color

—

Black

Lume

SuperLuminova

None

Movement

3 specs

Caliber

Seiko NH34

9RB1

Type

Automatic

Spring Drive

Power Reserve

—

72h

Pricing

1 specs

MSRP

$499

$12,400

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Signum Cuda GMTvsGrand Seiko SLGB023

At a glance

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