Which is cheaper, the Grand Seiko SBGW262 or the Yema Navygraf Marine Nationale CMM.10?

At MSRP the Yema Navygraf Marine Nationale CMM.10 is the cheaper of the two at $1,614, against $30,000 for the Grand Seiko SBGW262 — a $28,386 gap before any retailer discounting.

Which has better water resistance, the Grand Seiko SBGW262 or the Yema Navygraf Marine Nationale CMM.10?

The Yema Navygraf Marine Nationale CMM.10 is rated to 100m versus 30m for the Grand Seiko SBGW262.

Which has a longer power reserve, the Grand Seiko SBGW262 or the Yema Navygraf Marine Nationale CMM.10?

The Grand Seiko SBGW262 carries a 72-hour power reserve against 40 hours on the Yema Navygraf Marine Nationale CMM.10.

What movement does the Grand Seiko SBGW262 run compared to the Yema Navygraf Marine Nationale CMM.10?

The Grand Seiko SBGW262 runs a manual caliber (9S64), while the Yema Navygraf Marine Nationale CMM.10 runs a automatic (Yema CMM.10).

Side by side

Grand Seiko SBGW262vsYema Navygraf Marine Nationale CMM.10

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

Grand Seiko SBGW262

sbgw262j

MSRP $30,000

Yema Navygraf Marine Nationale CMM.10

yema-navygraf-marine-nationale-cmm-10-21-14-55-sn-m

MSRP $1,614

At a glance

11 of 29 specs differ

Diameter

SBGW26239mm

Navygraf Marine Nationale CMM.1039mm

Power Reserve

SBGW26272h

Navygraf Marine Nationale CMM.1040h

Water Resistance

SBGW26230m

Navygraf Marine Nationale CMM.10100m

MSRP

SBGW262$30,000

Navygraf Marine Nationale CMM.10$1,614

Full specifications

Case

5 specs

Crystal & Dial

2 specs

Crystal

Sapphire

Domed Sapphire

AR Coating

Yes

Inner

Movement

3 specs

Caliber

9S64

Yema CMM.10

Type

Manual

Automatic

Power Reserve

72h

40h

Pricing

1 specs

MSRP

$30,000

$1,614

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