Side by side

Redux Zero-HourvsZelos Spearfish GMT

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

Zero-Hour
ReduxZero-Hour
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

9 of 29 specs differ
Diameter
Zero-Hour39mm
Spearfish GMT40mm
Power Reserve
Zero-Hour41h
Spearfish GMT40h
Water Resistance
Zero-Hour200m
Spearfish GMT200m
MSRP
Zero-Hour
Spearfish GMT$999

Full specifications

Case

5 specs
Category
GMT
Diameter
39mm
40mm
Thickness
13.7mm
13mm
Lug-to-Lug
46.6mm
40mm
Material
Titanium
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Black
Frost

Movement

2 specs
Caliber
Seiko NH35
Sellita SW330-2
Power Reserve
41h
40h

Pricing

1 specs
MSRP
$999

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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 Type 39MM for its robust, no-nonsense design and good overall quality, with a reliable Seiko NH53A movement keeping time well. The titanium case and crystal have shown scratch resistance, and the bezel action is described as tight by some. Reviewers note the proprietary RDXB1 or blue lume glows brilliantly, though briefly. Some owners flag the crown stem as flimsy and the unidirectional bezel as having some play. Overall, owners rate the Redux Courg Type 39MM highly for its functional tool-watch design and durable titanium construction.

Zelos Spearfish GMT

The Zelos Spearfish GMT is widely praised for its exceptional value, with reviewers highlighting its superb finishing, flawless machining, and a tool-less micro-adjustment clasp that exceeds its price point. It features a La Joux-Perret G100 movement with a 68-hour power reserve, achieving an average accuracy of +2.6 seconds per day, or a Miyota 9075 movement offering flier-style GMT functionality. The 40mm case and bidirectional 48-click ceramic bezel are well-executed, though one reviewer noted a minor compromise in the end link fit. Overall, owners and reviewers rate the Zelos Spearfish GMT highly for its impressive finishing and value proposition.

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