Which is bigger, the Redux Zero-Hour or the Formex Reef 42 mm?

The Formex Reef 42 mm wears larger at 42mm versus 39mm for the Redux Zero-Hour — a 3mm difference across the dial.

Which has better water resistance, the Redux Zero-Hour or the Formex Reef 42 mm?

The Formex Reef 42 mm is rated to 300m versus 200m for the Redux Zero-Hour.

Which has a longer power reserve, the Redux Zero-Hour or the Formex Reef 42 mm?

The Formex Reef 42 mm carries a 56-hour power reserve against 41 hours on the Redux Zero-Hour.

What movement does the Redux Zero-Hour run compared to the Formex Reef 42 mm?

Both watches run automatic movements — the Redux Zero-Hour uses the Seiko NH35 and the Formex Reef 42 mm uses the Sellita SW300-1.

Side by side

Redux Zero-HourvsFormex Reef 42 mm

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

Formex Reef 42 mm

reef-42mm-automatic-cosc-300m-black

MSRP $2,414

At a glance

11 of 29 specs differ

Diameter

Zero-Hour39mm

Reef 42 mm42mm

Power Reserve

Zero-Hour41h

Reef 42 mm56h

Water Resistance

Zero-Hour200m

Reef 42 mm300m

MSRP

Zero-Hour—

Reef 42 mm$2,414

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Lume

None

Super-LumiNova

Movement

2 specs

Caliber

Seiko NH35

Sellita SW300-1

Power Reserve

41h

56h

Pricing

1 specs

MSRP

—

$2,414

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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

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Formex Reef 42 mm

The Formex Reef 42 mm is widely praised for its comfortable bracelet featuring a micro-adjust clasp, COSC-certified Sellita movement, and excellent build quality. Owners appreciate the gradient dial's visual appeal and the overall wearability. Some owners note the seconds hand does not perfectly align with markers, and one owner found the lugs' taper hinders third-party strap fit. The bracelet's length and sporty design are noted as limiting versatility by some. On balance, owners and reviewers rate the Formex Reef 42 mm highly for its impressive wearability and value at the price point.

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