Which is cheaper, the Marathon Steel Navigator SSNAV-D Quartz or the Grand Seiko STGK003?

At MSRP the Marathon Steel Navigator SSNAV-D Quartz is the cheaper of the two at $1,300, against $31,200 for the Grand Seiko STGK003 — a $29,900 gap before any retailer discounting.

Which is bigger, the Marathon Steel Navigator SSNAV-D Quartz or the Grand Seiko STGK003?

The Marathon Steel Navigator SSNAV-D Quartz wears larger at 41mm versus 28.7mm for the Grand Seiko STGK003 — a 12.3mm difference across the dial.

Which has better water resistance, the Marathon Steel Navigator SSNAV-D Quartz or the Grand Seiko STGK003?

The Grand Seiko STGK003 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 STGK003?

The Grand Seiko STGK003 carries a 50-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 STGK003?

The Marathon Steel Navigator SSNAV-D Quartz runs a quartz caliber (Swiss High-Torque Quartz), while the Grand Seiko STGK003 runs a automatic (9S27).

Side by side

Marathon Steel Navigator SSNAV-D QuartzvsGrand Seiko STGK003

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 STGK003

stgk003j

MSRP $31,200

At a glance

12 of 29 specs differ

Diameter

Steel Navigator SSNAV-D Quartz41mm

STGK00328.7mm

Power Reserve

Steel Navigator SSNAV-D Quartz40h

STGK00350h

Water Resistance

Steel Navigator SSNAV-D Quartz60m

STGK003100m

MSRP

Steel Navigator SSNAV-D Quartz$1,300

STGK003$31,200

Full specifications

Case

7 specs

Crystal & Dial

1 specs

AR Coating

Inner

Yes

Movement

3 specs

Caliber

Swiss High-Torque Quartz

9S27

Type

Quartz

Automatic

Power Reserve

40h

50h

Pricing

1 specs

MSRP

$1,300

$31,200

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