Side by side

Marathon TSAR (Tritium Search & Rescue) Diver's QuartzvsRedux Zero-Hour

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

TSAR (Tritium Search & Rescue) Diver's Quartz
MarathonTSAR (Tritium Search & Rescue) Diver's Quartz
MSRP $1,550
Zero-Hour
ReduxZero-Hour

At a glance

10 of 29 specs differ
Diameter
TSAR (Tritium Search & Rescue) Diver's Quartz46mm
Zero-Hour39mm
Power Reserve
TSAR (Tritium Search & Rescue) Diver's Quartz40h
Zero-Hour41h
Water Resistance
TSAR (Tritium Search & Rescue) Diver's Quartz300m
Zero-Hour200m
MSRP
TSAR (Tritium Search & Rescue) Diver's Quartz$1,550
Zero-Hour

Full specifications

Case

6 specs
Category
Diver
Diameter
46mm
39mm
Thickness
14mm
13.7mm
Lug-to-Lug
48mm
46.6mm
Material
316L Stainless Steel
Titanium
Water Resistance
300m
200m

Movement

3 specs
Caliber
Swiss High-Torque Quartz
Seiko NH35
Type
Quartz
Automatic
Power Reserve
40h
41h

Pricing

1 specs
MSRP
$1,550

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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 TSAR (Tritium Search & Rescue) Diver's Quartz

Owners widely praise the Marathon TSAR (Tritium Search & Rescue) Diver's Quartz for its ISO 6425 certification and practical, everyday wearability, with one owner noting the movement sets and ticks fine with expected quartz accuracy. The bezel and crystal are also described as great. One owner reports the 41mm TSAR wears small and has a field watch aesthetic, while another notes the TSAR Medium, listed at 12mm thick, visually appears thicker. Overall, owners rate the Marathon TSAR (Tritium Search & Rescue) Diver's Quartz highly for its robust build and practical design.

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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