Which is cheaper, the Marathon Steel Navigator SSNAV-D Quartz or the Grand Seiko SBGX363?

At MSRP the Marathon Steel Navigator SSNAV-D Quartz is the cheaper of the two at $1,300, against $3,600 for the Grand Seiko SBGX363 — a $2,300 gap before any retailer discounting.

Which is bigger, the Marathon Steel Navigator SSNAV-D Quartz or the Grand Seiko SBGX363?

The Marathon Steel Navigator SSNAV-D Quartz wears larger at 41mm versus 32.3mm for the Grand Seiko SBGX363 — a 8.7mm difference across the dial.

Which has better water resistance, the Marathon Steel Navigator SSNAV-D Quartz or the Grand Seiko SBGX363?

The Grand Seiko SBGX363 is rated to 100m versus 60m for the Marathon Steel Navigator SSNAV-D Quartz.

What movement does the Marathon Steel Navigator SSNAV-D Quartz run compared to the Grand Seiko SBGX363?

Both watches run quartz movements — the Marathon Steel Navigator SSNAV-D Quartz uses the Swiss High-Torque Quartz and the Grand Seiko SBGX363 uses the 9F51.

Side by side

Marathon Steel Navigator SSNAV-D QuartzvsGrand Seiko SBGX363

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 SBGX363

sbgx363g

MSRP $3,600

At a glance

10 of 29 specs differ

Diameter

Steel Navigator SSNAV-D Quartz41mm

SBGX36332.3mm

Power Reserve

Steel Navigator SSNAV-D Quartz40h

SBGX36340h

Water Resistance

Steel Navigator SSNAV-D Quartz60m

SBGX363100m

MSRP

Steel Navigator SSNAV-D Quartz$1,300

SBGX363$3,600

Full specifications

Case

7 specs

Crystal & Dial

1 specs

AR Coating

Inner

Yes

Movement

1 specs

Caliber

Swiss High-Torque Quartz

9F51

Pricing

1 specs

MSRP

$1,300

$3,600

Follow this matchup

Get a note when Marathon Steel Navigator SSNAV-D Quartz vs Grand Seiko SBGX363 gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring