Which is cheaper, the Marathon Steel Navigator SSNAV-D Quartz or the Grand Seiko SBGA384?

At MSRP the Marathon Steel Navigator SSNAV-D Quartz is the cheaper of the two at $1,300, against $29,500 for the Grand Seiko SBGA384 — a $28,200 gap before any retailer discounting.

Which is bigger, the Marathon Steel Navigator SSNAV-D Quartz or the Grand Seiko SBGA384?

The Marathon Steel Navigator SSNAV-D Quartz wears larger at 41mm versus 40mm for the Grand Seiko SBGA384 — a 1mm difference across the dial.

Which has better water resistance, the Marathon Steel Navigator SSNAV-D Quartz or the Grand Seiko SBGA384?

The Grand Seiko SBGA384 is rated to 100m versus 60m for the Marathon Steel Navigator SSNAV-D Quartz.

Which has a longer power reserve, the Marathon Steel Navigator SSNAV-D Quartz or the Grand Seiko SBGA384?

The Grand Seiko SBGA384 carries a 72-hour power reserve against 40 hours on the Marathon Steel Navigator SSNAV-D Quartz.

What movement does the Marathon Steel Navigator SSNAV-D Quartz run compared to the Grand Seiko SBGA384?

The Marathon Steel Navigator SSNAV-D Quartz runs a quartz caliber (Swiss High-Torque Quartz), while the Grand Seiko SBGA384 runs a spring drive (9R15).

Side by side

Marathon Steel Navigator SSNAV-D QuartzvsGrand Seiko SBGA384

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

Marathon Steel Navigator SSNAV-D Quartz

41mm-steel-navigator-w-date-ssnav-d-on-black-3-piece-rubber-strap-kit

MSRP $1,300

Grand Seiko SBGA384

sbga384g

MSRP $29,500

At a glance

12 of 29 specs differ

Diameter

Steel Navigator SSNAV-D Quartz41mm

SBGA38440mm

Power Reserve

Steel Navigator SSNAV-D Quartz40h

SBGA38472h

Water Resistance

Steel Navigator SSNAV-D Quartz60m

SBGA384100m

MSRP

Steel Navigator SSNAV-D Quartz$1,300

SBGA384$29,500

Full specifications

Case

7 specs

Crystal & Dial

1 specs

AR Coating

Inner

Yes

Movement

3 specs

Caliber

Swiss High-Torque Quartz

9R15

Type

Quartz

Spring Drive

Power Reserve

40h

72h

Pricing

1 specs

MSRP

$1,300

$29,500

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