Side by side

Marathon Steel Navigator SSNAV AutovsRedux Zero-Hour

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

Steel Navigator SSNAV Auto
MarathonSteel Navigator SSNAV Auto
MSRP $1,300
Zero-Hour
ReduxZero-Hour

At a glance

9 of 29 specs differ
Diameter
Steel Navigator SSNAV Auto41mm
Zero-Hour39mm
Power Reserve
Steel Navigator SSNAV Auto40h
Zero-Hour41h
Water Resistance
Steel Navigator SSNAV Auto60m
Zero-Hour200m
MSRP
Steel Navigator SSNAV Auto$1,300
Zero-Hour

Full specifications

Case

6 specs
Category
Pilot
Diameter
41mm
39mm
Thickness
11.5mm
13.7mm
Lug-to-Lug
48mm
46.6mm
Material
316L Stainless Steel
Titanium
Water Resistance
60m
200m

Movement

2 specs
Caliber
Sellita SW200-1
Seiko NH35
Power Reserve
40h
41h

Pricing

1 specs
MSRP
$1,300

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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 Steel Navigator SSNAV Auto

The Marathon Steel Navigator SSNAV Auto is praised for its high-accuracy quartz movement, with owners noting its comfort and reliable performance. Reviewers highlight its functional tool-watch appeal, featuring a sandblasted steel case, tritium tubes for constant low-light visibility, and 100-meter water resistance. One owner finds the 41mm case runs a bit small. The Marathon Steel Navigator SSNAV Auto utilizes an ETA F06.412 quartz movement with a claimed accuracy of +/- 10 seconds per year and includes a GMT bidirectional bezel. Overall, owners and reviewers rate the Marathon Steel Navigator SSNAV Auto highly for its comfortable wear and dependable, high-accuracy quartz movement.

Redux Zero-Hour

Owners widely praise the Redux Courg Zero Hour 39MM for its robust, utilitarian design inspired by pilot and dive tools, its lightweight Grade 5 titanium construction, and its comfortable wearability. The proprietary RDXB1 lume is noted for its bright initial glow, though it fades quickly. The Seiko NH53A or NH35 movement is generally considered reliable. However, multiple owners report a flimsy or fragile crown stem, and some describe the unidirectional bezel as having play or being able to rotate clockwise by one minute, though one owner reported a tight bezel with no play. The 39mm case size is considered good by some, while others find it small for larger wrists or note it looks large, with some desiring a 42mm option. One owner found the titanium finish looked slightly cheap and wished for a bezel insert. The dial is described by one owner as too busy for easy reading without glasses. The Redux Courg Zero Hour 39MM is available for $300, down from an original price of $507.

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