Side by side

Redux Zero-HourvsGruppo Gamma Field III GMT

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

Zero-Hour
ReduxZero-Hour
Field III GMT
Gruppo GammaField III GMT
MSRP $459

At a glance

12 of 29 specs differ
Diameter
Zero-Hour39mm
Field III GMT40mm
Power Reserve
Zero-Hour41h
Field III GMT41h
Water Resistance
Zero-Hour200m
Field III GMT200m
MSRP
Zero-Hour
Field III GMT$459

Full specifications

Case

6 specs
Category
GMT
Diameter
39mm
40mm
Thickness
13.7mm
14mm
Lug-to-Lug
46.6mm
48.5mm
Lug Width
20mm
22mm
Material
Titanium
Stainless Steel

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
Seiko NH35
Seiko Instruments NH38A
Power Reserve
41h
41h
Complications
None
GMT

Pricing

1 specs
MSRP
$459

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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.

Gruppo Gamma Field III GMT

Owners praise the Gruppo Gamma Field III GMT for its look and value, with specific mentions of its sandwich dial and comfortable OEM straps. One owner notes incredible quality for the price across their Gruppo Gamma watches. The watch features a 40mm brushed stainless steel case, box sapphire crystal, and a Seiko NH34A movement with a 41-hour power reserve and stated accuracy of -20~+40 s/day. Some find the lack of a date window a drawback for a GMT, and question its differentiation from other NH34-powered watches. On balance, owners and reviewers find the Gruppo Gamma Field III GMT to be a good value with quality construction for its price point.

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