Which is cheaper, the Radcliffe Watches L'INSTANT SONORE or the Grand Seiko SLGA001?

At MSRP the Radcliffe Watches L'INSTANT SONORE is the cheaper of the two at $1,588, against $11,100 for the Grand Seiko SLGA001 — a $9,512 gap before any retailer discounting.

Which is bigger, the Radcliffe Watches L'INSTANT SONORE or the Grand Seiko SLGA001?

The Grand Seiko SLGA001 wears larger at 46.9mm versus 40mm for the Radcliffe Watches L'INSTANT SONORE — a 6.9mm difference across the dial.

Which has better water resistance, the Radcliffe Watches L'INSTANT SONORE or the Grand Seiko SLGA001?

The Grand Seiko SLGA001 is rated to 100m versus 30m for the Radcliffe Watches L'INSTANT SONORE.

What movement does the Radcliffe Watches L'INSTANT SONORE run compared to the Grand Seiko SLGA001?

The Radcliffe Watches L'INSTANT SONORE runs a automatic caliber (Miyota 9015), while the Grand Seiko SLGA001 runs a spring drive (9RA5).

Side by side

Radcliffe Watches L'INSTANT SONOREvsGrand Seiko SLGA001

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

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Radcliffe Watches L'INSTANT SONORE

MSRP $1,588

Grand Seiko SLGA001

slga001g

MSRP $11,100

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Buy from Grand Seiko ↗

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At a glance

12 of 29 specs differ

Diameter

L'INSTANT SONORE40mm

SLGA00146.9mm

Power Reserve

L'INSTANT SONORE—

SLGA001120h

Water Resistance

L'INSTANT SONORE30m

SLGA001100m

MSRP

L'INSTANT SONORE$1,588

SLGA001$11,100

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Dial Color

—

Black

Movement

3 specs

Caliber

Miyota 9015

9RA5

Type

Automatic

Spring Drive

Power Reserve

—

120h

Pricing

1 specs

MSRP

—

$11,100

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