Side by side

Fortis Marinemaster M-40vsMarathon Steel Navigator SSNAV-D Auto

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
Steel Navigator SSNAV-D Auto
MarathonSteel Navigator SSNAV-D Auto
MSRP $1,400

At a glance

11 of 29 specs differ
Diameter
Marinemaster M-4040mm
Steel Navigator SSNAV-D Auto41mm
Power Reserve
Marinemaster M-4038h
Steel Navigator SSNAV-D Auto40h
Water Resistance
Marinemaster M-40300m
Steel Navigator SSNAV-D Auto60m
MSRP
Marinemaster M-40$3,520
Steel Navigator SSNAV-D Auto$1,400

Full specifications

Case

7 specs
Category
Diver
Pilot
Diameter
40mm
41mm
Thickness
13mm
11mm
Lug-to-Lug
48mm
Lug Width
21mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
60m

Crystal & Dial

1 specs
Dial Color
Orange
Black

Movement

2 specs
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
$1,400

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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 Steel Navigator SSNAV-D Auto

The Marathon Steel Navigator SSNAV-D Auto is praised for its durable construction, featuring a sandblasted steel case with improved lugs, a bi-directional bezel with excellent action, and 100m water resistance. Owners appreciate the constant visibility provided by self-illuminating tritium gas tubes and the precision of its ETA F06.412 quartz movement, which offers accuracy to about 10 seconds per year. The watch includes a GMT bezel for dual timekeeping and a synthetic sapphire crystal. Overall, owners and reviewers rate the Marathon Steel Navigator SSNAV-D Auto highly for its robust tool-watch design and reliable tritium illumination.

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