Side by side

Fortis Marinemaster M-40vsMarathon 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.

Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520
GPQ-D (Officer's Quartz with Date) Field Watch
MarathonGPQ-D (Officer's Quartz with Date) Field Watch
MSRP $650

At a glance

13 of 29 specs differ
Diameter
Marinemaster M-4040mm
GPQ-D (Officer's Quartz with Date) Field Watch36mm
Power Reserve
Marinemaster M-4038h
GPQ-D (Officer's Quartz with Date) Field Watch40h
Water Resistance
Marinemaster M-40300m
GPQ-D (Officer's Quartz with Date) Field Watch30m
MSRP
Marinemaster M-40$3,520
GPQ-D (Officer's Quartz with Date) Field Watch$650

Full specifications

Case

7 specs
Category
Diver
Field
Diameter
40mm
36mm
Thickness
13mm
11mm
Lug-to-Lug
44mm
Lug Width
21mm
16mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
30m

Crystal & Dial

1 specs
Dial Color
Orange
Black

Movement

4 specs
Caliber
Sellita SW220-1
Swiss High-Torque Quartz (3J, EOL)
Type
Automatic
Quartz
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
$650

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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.

Fortis Marinemaster M-40

Owners praise the Fortis Amber Orange for its gorgeous appearance and strong wrist presence, noting its crazy lume and 70-hour power reserve. The Doxa SUB 300T, described as having a superb, eccentric design with a highly legible dial and functional no-decompression bezel, uses an ETA 2824-2 movement. However, the SUB 300T's 42.5mm case wears large and its 14mm thickness is not ideal for dress shirts, though it boasts 1,200m water resistance. On balance, owners appreciate the Fortis Amber Orange for its striking aesthetics and impressive lume.

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.

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