Side by side

Redux Zero-HourvsGrand Seiko SLGA009

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

Zero-Hour
ReduxZero-Hour
SLGA009
Grand SeikoSLGA009
MSRP $9,800

At a glance

12 of 29 specs differ
Diameter
Zero-Hour39mm
SLGA00940mm
Power Reserve
Zero-Hour41h
SLGA009120h
Water Resistance
Zero-Hour200m
SLGA009100m
MSRP
Zero-Hour
SLGA009$9,800

Full specifications

Case

7 specs
Category
Dress
Diameter
39mm
40mm
Thickness
13.7mm
11.8mm
Lug-to-Lug
46.6mm
47.9mm
Lug Width
20mm
22mm
Material
Titanium
Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

3 specs
Caliber
Seiko NH35
9RA2
Type
Automatic
Spring Drive
Power Reserve
41h
120h

Pricing

1 specs
MSRP
$9,800

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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.

Grand Seiko SLGA009

The Grand Seiko SLGA009 "White Birch II" is praised for its Spring Drive Caliber 9RA2 movement, offering exceptional accuracy of ±0.5 seconds per day and a 120-hour power reserve. Reviewers highlight its refined dial texture, inspired by Shinshu forests, and the Series 9 design with a frost-finished movement. The watch features a 40mm stainless steel case and a power reserve indicator on the movement bridge. However, its price of $8,600 to $9,100 USD is noted as relatively expensive, reflecting Grand Seiko's increasing price points. Overall, reviewers consider the Grand Seiko SLGA009 a highly refined timepiece, with its advanced Spring Drive movement and aesthetic improvements being key strengths.

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