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

At MSRP the Marathon Steel Navigator SSNAV Quartz is the cheaper of the two at $1,000, against $29,500 for the Grand Seiko SBGA384 — a $28,500 gap before any retailer discounting.

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

The Marathon Steel Navigator SSNAV 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 Quartz or the Grand Seiko SBGA384?

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

Which has a longer power reserve, the Marathon Steel Navigator SSNAV 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 Quartz.

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

The Marathon Steel Navigator SSNAV 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 QuartzvsGrand Seiko SBGA384

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

Marathon Steel Navigator SSNAV Quartz

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

MSRP $1,000

Grand Seiko SBGA384

sbga384g

MSRP $29,500

At a glance

12 of 29 specs differ

Diameter

Steel Navigator SSNAV Quartz41mm

SBGA38440mm

Power Reserve

Steel Navigator SSNAV Quartz40h

SBGA38472h

Water Resistance

Steel Navigator SSNAV Quartz60m

SBGA384100m

MSRP

Steel Navigator SSNAV Quartz$1,000

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

$1,000

$29,500

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