Which is cheaper, the Formex Reef 39.5 mm or the Zero West L4 Longitude?

At MSRP the Formex Reef 39.5 mm is the cheaper of the two at $2,230, against $2,995 for the Zero West L4 Longitude — a $765 gap before any retailer discounting.

Which is bigger, the Formex Reef 39.5 mm or the Zero West L4 Longitude?

The Zero West L4 Longitude wears larger at 42mm versus 39.5mm for the Formex Reef 39.5 mm — a 2.5mm difference across the dial.

Which has better water resistance, the Formex Reef 39.5 mm or the Zero West L4 Longitude?

The Formex Reef 39.5 mm is rated to 300m versus 100m for the Zero West L4 Longitude.

Which has a longer power reserve, the Formex Reef 39.5 mm or the Zero West L4 Longitude?

The Zero West L4 Longitude carries a 62-hour power reserve against 56 hours on the Formex Reef 39.5 mm.

What movement does the Formex Reef 39.5 mm run compared to the Zero West L4 Longitude?

Both watches run automatic movements — the Formex Reef 39.5 mm uses the Sellita SW300-1 and the Zero West L4 Longitude uses the Sellita SW500.

Side by side

Formex Reef 39.5 mmvsZero West L4 Longitude

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

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Formex Reef 39.5 mm

reef-39.5-automatic-chronometer-cosc-300m-bahama-blue

MSRP $2,230

Zero West L4 Longitude

l4-longitude

MSRP $2,995

At a glance

10 of 29 specs differ

Diameter

Reef 39.5 mm39.5mm

L4 Longitude42mm

Power Reserve

Reef 39.5 mm56h

L4 Longitude62h

Water Resistance

Reef 39.5 mm300m

L4 Longitude100m

MSRP

Reef 39.5 mm$2,230

L4 Longitude$2,995

Full specifications

Case

5 specs

Crystal & Dial

2 specs

Dial Color

Bahama Blue

—

Lume

Super-LumiNova

None

Movement

2 specs

Caliber

Sellita SW300-1

Sellita SW500

Power Reserve

56h

62h

Pricing

1 specs

MSRP

$2,230

$2,995

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Formex Reef 39.5 mmvsZero West L4 Longitude

At a glance

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