Side by side

Redux Zero-HourvsSugess Seestern S434 Pro Diver

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

Zero-Hour
ReduxZero-Hour
Seestern S434 Pro Diver
SugessSeestern S434 Pro Diver
MSRP $249

At a glance

13 of 29 specs differ
Diameter
Zero-Hour39mm
Seestern S434 Pro Diver40mm
Power Reserve
Zero-Hour41h
Seestern S434 Pro Diver40h
Water Resistance
Zero-Hour200m
Seestern S434 Pro Diver200m
MSRP
Zero-Hour
Seestern S434 Pro Diver$249

Full specifications

Case

6 specs
Category
Diver
Diameter
39mm
40mm
Thickness
13.7mm
12mm
Lug-to-Lug
46.6mm
46mm
Material
Titanium
Stainless Steel/Rose Gold
Caseback
Solid
Engraved

Crystal & Dial

2 specs
Dial Color
Black
2 Salmon
Lume
None
Super-LumiNova BGW9

Movement

4 specs
Caliber
Seiko NH35
NH35
Beat Rate
28,800 vph
3 vph
Power Reserve
41h
40h
Complications
None
GMT, Chronograph, Moonphase, Date

Pricing

1 specs
MSRP
$249

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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.

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.

Sugess Seestern S434 Pro Diver

Owners widely praise the Sugess Seestern S434 Pro Diver for its impressive finishing and craftsmanship at its price point, highlighting the applied indices that play with light, excellent BGW9 lume, and attractive color options. Specific positive notes include the domed sapphire crystal, short lug-to-lug, and on-the-fly clasp adjustment. However, some owners report quality control issues such as misaligned bezels or indices, while others with V2 models experience no such problems. Caveats include slight bezel back play, light AR coating on the crystal, and a clasp that could be smoother, with one owner desiring a color-matched date wheel. On balance, owners rate the Sugess Seestern S434 Pro Diver highly for its exceptional value and build quality, particularly the dial finishing and lume.

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