Which is cheaper, the Sinn 434 TW68 WG Mother-of-pearl W or the Grand Seiko SBGN027?

At MSRP the Grand Seiko SBGN027 is the cheaper of the two at $3,700, against $5,481 for the Sinn 434 TW68 WG Mother-of-pearl W — a $1,781 gap before any retailer discounting.

Which is bigger, the Sinn 434 TW68 WG Mother-of-pearl W or the Grand Seiko SBGN027?

The Grand Seiko SBGN027 wears larger at 39mm versus 34mm for the Sinn 434 TW68 WG Mother-of-pearl W — a 5mm difference across the dial.

Which has better water resistance, the Sinn 434 TW68 WG Mother-of-pearl W or the Grand Seiko SBGN027?

The Grand Seiko SBGN027 is rated to 200m versus 100m for the Sinn 434 TW68 WG Mother-of-pearl W.

What movement does the Sinn 434 TW68 WG Mother-of-pearl W run compared to the Grand Seiko SBGN027?

Both watches run quartz movements — the Sinn 434 TW68 WG Mother-of-pearl W uses the ETA E64.101 and the Grand Seiko SBGN027 uses the 9F86.

Side by side

Sinn 434 TW68 WG Mother-of-pearl WvsGrand Seiko SBGN027

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

Sinn 434 TW68 WG Mother-of-pearl W

434 TW68 WG Mother-of-pearl W

MSRP $5,481

Grand Seiko SBGN027

sbgn027g

MSRP $3,700

At a glance

18 of 29 specs differ

Diameter

434 TW68 WG Mother-of-pearl W34mm

SBGN02739mm

Power Reserve

434 TW68 WG Mother-of-pearl W—

SBGN02740h

Water Resistance

434 TW68 WG Mother-of-pearl W100m

SBGN027200m

MSRP

434 TW68 WG Mother-of-pearl W$5,481

SBGN027$3,700

Full specifications

Case

8 specs

Crystal & Dial

5 specs

Crystal Shape

—

Flat

AR Coating

Underside

Yes

Dial Color

White

Black

Indices

—

Applied

Lume

Luminescent

None

Movement

4 specs

Caliber

ETA E64.101

9F86

Beat Rate

—

28,800 vph

Power Reserve

—

40h

Jewels

Pricing

1 specs

MSRP

$5,481

$3,700

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