Which is cheaper, the Formex Reef 42 mm or the Zelos Swordfish Field 38?

At MSRP the Zelos Swordfish Field 38 is the cheaper of the two at $399, against $2,414 for the Formex Reef 42 mm — a $2,015 gap before any retailer discounting.

Which is bigger, the Formex Reef 42 mm or the Zelos Swordfish Field 38?

The Formex Reef 42 mm wears larger at 42mm versus 38mm for the Zelos Swordfish Field 38 — a 4mm difference across the dial.

Which has better water resistance, the Formex Reef 42 mm or the Zelos Swordfish Field 38?

The Formex Reef 42 mm is rated to 300m versus 200m for the Zelos Swordfish Field 38.

Which has a longer power reserve, the Formex Reef 42 mm or the Zelos Swordfish Field 38?

The Formex Reef 42 mm carries a 56-hour power reserve against 40 hours on the Zelos Swordfish Field 38.

What movement does the Formex Reef 42 mm run compared to the Zelos Swordfish Field 38?

Both watches run automatic movements — the Formex Reef 42 mm uses the Sellita SW300-1 and the Zelos Swordfish Field 38 uses the Seiko NH35.

Side by side

Formex Reef 42 mmvsZelos Swordfish Field 38

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 Swordfish Field 38

swordfish-field-38mm-bronze-burnt-orange

MSRP $399

At a glance

12 of 29 specs differ

Diameter

Reef 42 mm42mm

Swordfish Field 3838mm

Power Reserve

Reef 42 mm56h

Swordfish Field 3840h

Water Resistance

Reef 42 mm300m

Swordfish Field 38200m

MSRP

Reef 42 mm$2,414

Swordfish Field 38$399

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Dial Color

Black

Bronze

Lume

Super-LumiNova

None

Movement

2 specs

Caliber

Sellita SW300-1

Seiko NH35

Power Reserve

56h

40h

Pricing

1 specs

MSRP

$2,414

$399

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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.

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Zelos Swordfish Field 38

Owners widely praise the Zelos Swordfish Field 38 for its comfortable dimensions, noting they are acceptable both on paper and in practice. The Seiko NH35 movement is highlighted for its exceptionally smooth winding feel. On balance, owners rate the Zelos Swordfish Field 38 highly for its value and comfortable wearability.

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