Which is cheaper, the Formex Reef 42 mm or the Zelos Eagle 2?

At MSRP the Zelos Eagle 2 is the cheaper of the two at $899, against $2,414 for the Formex Reef 42 mm — a $1,515 gap before any retailer discounting.

Which is bigger, the Formex Reef 42 mm or the Zelos Eagle 2?

The Formex Reef 42 mm wears larger at 42mm versus 39mm for the Zelos Eagle 2 — a 3mm difference across the dial.

Which has better water resistance, the Formex Reef 42 mm or the Zelos Eagle 2?

The Formex Reef 42 mm is rated to 300m versus 100m for the Zelos Eagle 2.

Which has a longer power reserve, the Formex Reef 42 mm or the Zelos Eagle 2?

The Formex Reef 42 mm carries a 56-hour power reserve against 40 hours on the Zelos Eagle 2.

What movement does the Formex Reef 42 mm run compared to the Zelos Eagle 2?

Both watches run automatic movements — the Formex Reef 42 mm uses the Sellita SW300-1 and the Zelos Eagle 2 uses the La Joux-Perret G100.

Side by side

Formex Reef 42 mmvsZelos Eagle 2

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

Formex Reef 42 mm

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

MSRP $2,414

Zelos Eagle 2

eagle-2-ti-arctic

MSRP $899

At a glance

12 of 29 specs differ

Diameter

Reef 42 mm42mm

Eagle 239mm

Power Reserve

Reef 42 mm56h

Eagle 240h

Water Resistance

Reef 42 mm300m

Eagle 2100m

MSRP

Reef 42 mm$2,414

Eagle 2$899

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Dial Color

Black

Anthracite

Lume

Super-LumiNova

None

Movement

2 specs

Caliber

Sellita SW300-1

La Joux-Perret G100

Power Reserve

56h

40h

Pricing

1 specs

MSRP

$2,414

$899

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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.

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.

Owners widely praise the Zelos Eagle 2's unique meteorite dial and titanium case, with one owner describing it as a "work of art" featuring a fully lumed dial and a scratch-resistant 1,200 Vickers hardness-coated case. The LaJoux Perret G100Soigne movement provides a 68-hour power reserve. Some owners, however, find the dial layout "ugly" and the font thick, while others note minor QC issues like misaligned markers. On balance, owners rate the Zelos Eagle 2 highly for its distinctive meteorite dial and titanium construction at its price point.

From video reviewers

The watch's compact size is a notable strength, with a 39mm diameter case and 11mm thickness making it suitable for a pilot's watch. A potential weakness is the lug-to-lug fit, which may be too large for smaller wrists. Reviewers disagree on the bezel, with one reviewer highlighting the Cerakote finish as a standout feature, while another mentions the watch's bezel in passing without comment.

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