Side by side

Redux Zero-HourvsRZE Fortitude GMT

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

Zero-Hour
ReduxZero-Hour
Fortitude GMT
RZEFortitude GMT
MSRP $719

At a glance

12 of 29 specs differ
Diameter
Zero-Hour39mm
Fortitude GMT41mm
Power Reserve
Zero-Hour41h
Fortitude GMT40h
Water Resistance
Zero-Hour200m
Fortitude GMT200m
MSRP
Zero-Hour
Fortitude GMT$719

Full specifications

Case

5 specs
Category
GMT
Diameter
39mm
41mm
Thickness
13.7mm
12mm
Lug-to-Lug
46.6mm
47mm
Material
Titanium
Grade 5 Titanium

Crystal & Dial

3 specs
AR Coating
Inner
Underside
Dial Color
Black
Red
Lume
None
Super-LumiNova BGW9

Movement

3 specs
Caliber
Seiko NH35
Miyota 9075
Power Reserve
41h
40h
Complications
None
GMT

Pricing

1 specs
MSRP
$719

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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.

RZE Fortitude GMT

The RZE Fortitude GMT is widely praised for its lightweight titanium construction and durable UltraHex coating, offering exceptional value under $700. Owners and reviewers highlight its comfortable wearability, with a bracelet featuring a quick-adjust clasp and multiple micro-adjustment positions. The Miyota 9075 flyer GMT movement is noted for its accuracy, with one owner reporting -1 to +1 seconds per day, though another source states a range of -10/+30 seconds per day. The watch's design is appreciated for its soul and attention to detail, including a subtle red crown tube indicator and faceted lugs, and its Nimbus Grey dial features a coarse, sandpaper-like texture and fumé effect. A reviewer points out the rotor can be loud and a smaller screwdriver is needed for sizing, while an owner found the GMT hand lume confusing. Overall, owners and reviewers rate the RZE Fortitude GMT highly for its comfortable titanium build, durable coating, and excellent value.

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