Which has better water resistance, the Marathon GPQ-D (Officer's Quartz with Date) Field Watch or the Formex Reef 42 mm?

The Formex Reef 42 mm is rated to 300m versus 30m for the Marathon GPQ-D (Officer's Quartz with Date) Field Watch.

Which has a longer power reserve, the Marathon GPQ-D (Officer's Quartz with Date) Field Watch or the Formex Reef 42 mm?

The Formex Reef 42 mm carries a 56-hour power reserve against 40 hours on the Marathon GPQ-D (Officer's Quartz with Date) Field Watch.

What movement does the Marathon GPQ-D (Officer's Quartz with Date) Field Watch run compared to the Formex Reef 42 mm?

The Marathon GPQ-D (Officer's Quartz with Date) Field Watch runs a quartz caliber (Swiss High-Torque Quartz (3J, EOL)), while the Formex Reef 42 mm runs a automatic (Sellita SW300-1).

Side by side

Marathon GPQ-D (Officer's Quartz with Date) Field WatchvsFormex Reef 42 mm

Q: Which is cheaper, the Marathon GPQ-D (Officer's Quartz with Date) Field Watch or the Formex Reef 42 mm?

At MSRP the Marathon GPQ-D (Officer's Quartz with Date) Field Watch is the cheaper of the two at $650, against $2,414 for the Formex Reef 42 mm — a $1,764 gap before any retailer discounting.

Q: Which is bigger, the Marathon GPQ-D (Officer's Quartz with Date) Field Watch or the Formex Reef 42 mm?

The Formex Reef 42 mm wears larger at 42mm versus 36mm for the Marathon GPQ-D (Officer's Quartz with Date) Field Watch — a 6mm difference across the dial.

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

Formex Reef 42 mm

reef-42mm-automatic-cosc-300m-black

MSRP $2,414

At a glance

12 of 29 specs differ

Diameter

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

Reef 42 mm42mm

Power Reserve

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

Reef 42 mm56h

Water Resistance

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

Reef 42 mm300m

MSRP

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

Reef 42 mm$2,414

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Lume

None

Super-LumiNova

Movement

3 specs

Caliber

Swiss High-Torque Quartz (3J, EOL)

Sellita SW300-1

Type

Quartz

Automatic

Power Reserve

40h

56h

Pricing

1 specs

MSRP

$650

$2,414

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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

Formex Reef 42 mm

The Formex Reef 42 mm is widely praised for its comfortable bracelet featuring a micro-adjust clasp, COSC-certified Sellita movement, and excellent build quality. Owners appreciate the gradient dial's visual appeal and the overall wearability. Some owners note the seconds hand does not perfectly align with markers, and one owner found the lugs' taper hinders third-party strap fit. The bracelet's length and sporty design are noted as limiting versatility by some. On balance, owners and reviewers rate the Formex Reef 42 mm highly for its impressive wearability and value at the price point.

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