Which is cheaper, the Marathon Steel Navigator SSNAV Auto or the Grand Seiko SBGD223?

At MSRP the Marathon Steel Navigator SSNAV Auto is the cheaper of the two at $1,300, against $320,000 for the Grand Seiko SBGD223 — a $318,700 gap before any retailer discounting.

Which is bigger, the Marathon Steel Navigator SSNAV Auto or the Grand Seiko SBGD223?

The Grand Seiko SBGD223 wears larger at 44.5mm versus 41mm for the Marathon Steel Navigator SSNAV Auto — a 3.5mm difference across the dial.

Which has better water resistance, the Marathon Steel Navigator SSNAV Auto or the Grand Seiko SBGD223?

The Grand Seiko SBGD223 is rated to 100m versus 60m for the Marathon Steel Navigator SSNAV Auto.

Which has a longer power reserve, the Marathon Steel Navigator SSNAV Auto or the Grand Seiko SBGD223?

The Grand Seiko SBGD223 carries a 192-hour power reserve against 40 hours on the Marathon Steel Navigator SSNAV Auto.

What movement does the Marathon Steel Navigator SSNAV Auto run compared to the Grand Seiko SBGD223?

The Marathon Steel Navigator SSNAV Auto runs a automatic caliber (Sellita SW200-1), while the Grand Seiko SBGD223 runs a spring drive (9R01).

Side by side

Marathon Steel Navigator SSNAV AutovsGrand Seiko SBGD223

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

Marathon Steel Navigator SSNAV Auto

41mm-steel-navigator-automatic-ssnav-auto-on-ballistic-nylon

MSRP $1,300

Grand Seiko SBGD223

sbgd223j

MSRP $320,000

At a glance

12 of 29 specs differ

Diameter

Steel Navigator SSNAV Auto41mm

SBGD22344.5mm

Power Reserve

Steel Navigator SSNAV Auto40h

SBGD223192h

Water Resistance

Steel Navigator SSNAV Auto60m

SBGD223100m

MSRP

Steel Navigator SSNAV Auto$1,300

SBGD223$320,000

Full specifications

Case

7 specs

Crystal & Dial

1 specs

AR Coating

Inner

Yes

Movement

3 specs

Caliber

Sellita SW200-1

9R01

Type

Automatic

Spring Drive

Power Reserve

40h

192h

Pricing

1 specs

MSRP

$1,300

$320,000

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