Which is bigger, the Redux Zero-Hour or the Seestern S456 GMT?

The Seestern S456 GMT wears larger at 41mm versus 39mm for the Redux Zero-Hour — a 2mm difference across the dial.

Which has a longer power reserve, the Redux Zero-Hour or the Seestern S456 GMT?

The Seestern S456 GMT carries a 41h-hour power reserve against 41 hours on the Redux Zero-Hour.

What movement does the Redux Zero-Hour run compared to the Seestern S456 GMT?

The Redux Zero-Hour runs a automatic caliber (Seiko NH35), while the Seestern S456 GMT runs a automatic gmt (Seiko NH34).

Side by side

Redux Zero-HourvsSeestern S456 GMT

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

Seestern S456 GMT

S456

MSRP $299

At a glance

14 of 29 specs differ

Diameter

Zero-Hour39mm

S456 GMT41mm

Power Reserve

Zero-Hour41h

S456 GMT41hh

Water Resistance

Zero-Hour200m

S456 GMT200m

MSRP

Zero-Hour—

S456 GMT$299

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Dial Color

Black

Sunray style, applied and Diamond cut Indices, C1 lume

Lume

None

Movement

5 specs

Caliber

Seiko NH35

Seiko NH34

Beat Rate

28,800 vph

3 vph

Power Reserve

41h

41hh

Jewels

Complications

None

GMT

Pricing

1 specs

MSRP

—

$299

Follow this matchup

Get a note when Redux Zero-Hour vs Seestern S456 GMT gets more votes, a community discussion, or a price drop. No account needed.

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

Seestern S456 GMT

Owners widely praise the Seestern S456 GMT for its exceptional value and finishing that exceeds expectations, with one owner noting its accuracy surpasses that of their Seiko 5. The dial displays a pearl-like rainbow effect. Some owners would prefer a bidirectional bezel over the current unidirectional one. The Seestern S456 GMT features an NH34 movement, a 39.5mm case, sapphire crystal, and an adjustable clasp. On balance, owners rate the Seestern S456 GMT highly for its impressive finishing and value proposition at its price point.

From video reviewers

The watch features stunning, detailed finishing that is difficult to top. Reviewers did not reach a consensus on any weaknesses.

WatchUSeek

Keep exploring