Which is cheaper, the Grand Seiko SBGW306 or the Yema Navygraf Marine Nationale Femme?

At MSRP the Yema Navygraf Marine Nationale Femme is the cheaper of the two at $399, against $17,900 for the Grand Seiko SBGW306 — a $17,501 gap before any retailer discounting.

Which is bigger, the Grand Seiko SBGW306 or the Yema Navygraf Marine Nationale Femme?

The Grand Seiko SBGW306 wears larger at 36.5mm versus 34mm for the Yema Navygraf Marine Nationale Femme — a 2.5mm difference across the dial.

Which has a longer power reserve, the Grand Seiko SBGW306 or the Yema Navygraf Marine Nationale Femme?

The Grand Seiko SBGW306 carries a 72-hour power reserve against 40 hours on the Yema Navygraf Marine Nationale Femme.

What movement does the Grand Seiko SBGW306 run compared to the Yema Navygraf Marine Nationale Femme?

The Grand Seiko SBGW306 runs a manual caliber (9S64), while the Yema Navygraf Marine Nationale Femme runs a quartz.

Side by side

Grand Seiko SBGW306vsYema Navygraf Marine Nationale Femme

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

Grand Seiko SBGW306

sbgw306j

MSRP $17,900

Yema Navygraf Marine Nationale Femme

yema-marine-nationale-femme-ymhfmn34

MSRP $399

At a glance

12 of 29 specs differ

Diameter

SBGW30636.5mm

Navygraf Marine Nationale Femme34mm

Power Reserve

SBGW30672h

Navygraf Marine Nationale Femme40h

Water Resistance

SBGW306100m

Navygraf Marine Nationale Femme100m

MSRP

SBGW306$17,900

Navygraf Marine Nationale Femme$399

Full specifications

Case

6 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

$399

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