Which is cheaper, the Grand Seiko SBGW306 or the Yema Yachtingraff Seconde/Seconde/?

At MSRP the Yema Yachtingraff Seconde/Seconde/ is the cheaper of the two at $499, against $17,900 for the Grand Seiko SBGW306 — a $17,401 gap before any retailer discounting.

Which is bigger, the Grand Seiko SBGW306 or the Yema Yachtingraff Seconde/Seconde/?

The Yema Yachtingraff Seconde/Seconde/ wears larger at 38.5mm versus 36.5mm for the Grand Seiko SBGW306 — a 2mm difference across the dial.

Which has better water resistance, the Grand Seiko SBGW306 or the Yema Yachtingraff Seconde/Seconde/?

The Grand Seiko SBGW306 is rated to 100m versus 50m for the Yema Yachtingraff Seconde/Seconde/.

Which has a longer power reserve, the Grand Seiko SBGW306 or the Yema Yachtingraff Seconde/Seconde/?

The Grand Seiko SBGW306 carries a 72-hour power reserve against 40 hours on the Yema Yachtingraff Seconde/Seconde/.

What movement does the Grand Seiko SBGW306 run compared to the Yema Yachtingraff Seconde/Seconde/?

The Grand Seiko SBGW306 runs a manual caliber (9S64), while the Yema Yachtingraff Seconde/Seconde/ runs a quartz.

Side by side

Grand Seiko SBGW306vsYema Yachtingraff Seconde/Seconde/

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

Grand Seiko SBGW306

sbgw306j

MSRP $17,900

Yema Yachtingraff Seconde/Seconde/

yema-yachtingraff-seconde-seconde-ymhf1588-atps

MSRP $499

At a glance

13 of 29 specs differ

Diameter

SBGW30636.5mm

Yachtingraff Seconde/Seconde/38.5mm

Power Reserve

SBGW30672h

Yachtingraff Seconde/Seconde/40h

Water Resistance

SBGW306100m

Yachtingraff Seconde/Seconde/50m

MSRP

SBGW306$17,900

Yachtingraff Seconde/Seconde/$499

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Yes

Inner

Dial Color

Black

Standard

Movement

3 specs

Caliber

9S64

—

Type

Manual

Quartz

Power Reserve

72h

40h

Pricing

1 specs

MSRP

$17,900

$499

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