Which is bigger, the Redux Zero-Hour or the Seiko Presage Sharp Edged Series?

The Seiko Presage Sharp Edged Series wears larger at 40.2mm versus 39mm for the Redux Zero-Hour — a 1.2mm difference across the dial.

Which has better water resistance, the Redux Zero-Hour or the Seiko Presage Sharp Edged Series?

The Redux Zero-Hour is rated to 200m versus 10m for the Seiko Presage Sharp Edged Series.

Which has a longer power reserve, the Redux Zero-Hour or the Seiko Presage Sharp Edged Series?

The Seiko Presage Sharp Edged Series carries a 45-hour power reserve against 41 hours on the Redux Zero-Hour.

What movement does the Redux Zero-Hour run compared to the Seiko Presage Sharp Edged Series?

Both watches run automatic movements — the Redux Zero-Hour uses the Seiko NH35 and the Seiko Presage Sharp Edged Series uses the 6R21.

Side by side

Redux Zero-HourvsSeiko Presage Sharp Edged Series

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

Redux Zero-Hour

the-courg-watch-zero-hour-39mm

Seiko Presage Sharp Edged Series

spb307j1

MSRP $1,100

At a glance

12 of 29 specs differ

Diameter

Zero-Hour39mm

Presage Sharp Edged Series40.2mm

Power Reserve

Zero-Hour41h

Presage Sharp Edged Series45h

Water Resistance

Zero-Hour200m

Presage Sharp Edged Series100m

MSRP

Zero-Hour—

Presage Sharp Edged Series$1,100

Full specifications

Case

6 specs

Crystal & Dial

2 specs

AR Coating

Inner

Anti-reflective coating on inner surface

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Seiko NH35

6R21

Power Reserve

41h

45h

Jewels

Pricing

1 specs

MSRP

—

$1,100

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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.

Reddit·2

WatchUSeek

Seiko Presage Sharp Edged Series

The Seiko Presage Sharp Edged Series is widely lauded for its sharp, angular case design and the intricate finishing of its dials, often featuring traditional Japanese motifs like the Asanoha pattern. Owners and reviewers consistently highlight the beautiful interplay of polished and hairline finishes on the case and bracelet, the use of sapphire crystals, and a robust 100m water resistance. The collection is powered by reliable in-house automatic movements, with many models featuring the 6R35 movement offering a 70-hour power reserve. Some specific models are noted for their refined finishing and updated case facets, while the 24-hour sub-dial on certain variants is considered a niche complication. Overall, owners and reviewers rate the Seiko Presage Sharp Edged Series highly for its striking design and quality finishing at its price point.

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