What movement does the Marathon GPQ-D (Officer's Quartz with Date) Field Watch run compared to the Grand Seiko SBGX355?

Both watches run quartz movements — the Marathon GPQ-D (Officer's Quartz with Date) Field Watch uses the Swiss High-Torque Quartz (3J, EOL) and the Grand Seiko SBGX355 uses the 9F62.

Side by side

Marathon GPQ-D (Officer's Quartz with Date) Field WatchvsGrand Seiko SBGX355

Q: Which is cheaper, the Marathon GPQ-D (Officer's Quartz with Date) Field Watch or the Grand Seiko SBGX355?

At MSRP the Marathon GPQ-D (Officer's Quartz with Date) Field Watch is the cheaper of the two at $650, against $4,100 for the Grand Seiko SBGX355 — a $3,450 gap before any retailer discounting.

Q: Which is bigger, the Marathon GPQ-D (Officer's Quartz with Date) Field Watch or the Grand Seiko SBGX355?

The Grand Seiko SBGX355 wears larger at 37mm versus 36mm for the Marathon GPQ-D (Officer's Quartz with Date) Field Watch — a 1mm difference across the dial.

Q: Which has better water resistance, the Marathon GPQ-D (Officer's Quartz with Date) Field Watch or the Grand Seiko SBGX355?

The Grand Seiko SBGX355 is rated to 100m versus 30m for the Marathon GPQ-D (Officer's Quartz with Date) Field Watch.

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

Marathon GPQ-D (Officer's Quartz with Date) Field Watch

officers-watch-with-date-gpq-39mm-case-crown-defstan

MSRP $650

Grand Seiko SBGX355

sbgx355g

MSRP $4,100

At a glance

10 of 29 specs differ

Diameter

GPQ-D (Officer's Quartz with Date) Field Watch36mm

SBGX35537mm

Power Reserve

GPQ-D (Officer's Quartz with Date) Field Watch40h

SBGX35540h

Water Resistance

GPQ-D (Officer's Quartz with Date) Field Watch30m

SBGX355100m

MSRP

GPQ-D (Officer's Quartz with Date) Field Watch$650

SBGX355$4,100

Full specifications

Case

7 specs

Crystal & Dial

1 specs

AR Coating

Inner

Yes

Movement

1 specs

Caliber

Swiss High-Torque Quartz (3J, EOL)

9F62

Pricing

1 specs

MSRP

$650

$4,100

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Marathon GPQ-D (Officer's Quartz with Date) Field Watch

Marathon GPQ-D (Officer's Quartz with Date) Field Watch owners praise its tritium tubes, Mil-spec designation, and scratch-resistant case finish, with some finding the 36mm size practical for field use. However, some owners criticize its perceived overpriced nature, thick case, and squared-off lugs, while others point to the composite case material, 30m water resistance, and unbranded movement as drawbacks. On balance, owners are divided on the Marathon GPQ-D (Officer's Quartz with Date) Field Watch, with opinions split on its value and design features.

WatchCrunch

Grand Seiko SBGX355

The Grand Seiko SBGX355 is widely praised for its beautiful dial, excellent finishing, and perfect 37mm size. Owners report unparalleled accuracy from the 9F62 quartz movement, rated to within 10 seconds per year. The high-intensity titanium case and 100m water resistance are noted features. Some consider the SBGX355 a "baby Snowflake" and a more accessible alternative to other models. Overall, owners and reviewers rate the Grand Seiko SBGX355 highly for its iconic Snowflake dial and exceptional quartz accuracy in a wearable 37mm case.

From video reviewers

The titanium case finishing is a significant strength. The deployant clasp is noted as prone to rattle. Reviewers disagree on the ideal case size for everyday wear.

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