Which is cheaper, the Formex Reef 42 mm or the Serket Watch Co Reef Mariana?

At MSRP the Serket Watch Co Reef Mariana is the cheaper of the two at $449, against $2,414 for the Formex Reef 42 mm — a $1,965 gap before any retailer discounting.

Which is bigger, the Formex Reef 42 mm or the Serket Watch Co Reef Mariana?

The Formex Reef 42 mm wears larger at 42mm versus 40mm for the Serket Watch Co Reef Mariana — a 2mm difference across the dial.

Which has better water resistance, the Formex Reef 42 mm or the Serket Watch Co Reef Mariana?

The Formex Reef 42 mm is rated to 300m versus 200m for the Serket Watch Co Reef Mariana.

What movement does the Formex Reef 42 mm run compared to the Serket Watch Co Reef Mariana?

Both watches run automatic movements — the Formex Reef 42 mm uses the Sellita SW300-1 and the Serket Watch Co Reef Mariana uses the Seiko NH35.

Side by side

Formex Reef 42 mmvsSerket Watch Co Reef Mariana

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

Add a watch

Formex Reef 42 mm

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

MSRP $2,414

Serket Watch Co Reef Mariana

reef-x-mariana-diver-orange-dial-black-bezel-40mm-pre-order

MSRP $449

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At a glance

11 of 29 specs differ

Diameter

Reef 42 mm42mm

Reef Mariana40mm

Power Reserve

Reef 42 mm56h

Reef Mariana—

Water Resistance

Reef 42 mm300m

Reef Mariana200m

MSRP

Reef 42 mm$2,414

Reef Mariana$449

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Dial Color

Black

Orange

Lume

Super-LumiNova

BGW9

Movement

2 specs

Caliber

Sellita SW300-1

Seiko NH35

Power Reserve

56h

—

Pricing

1 specs

MSRP

$2,414

$449

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Formex Reef 42 mmvsSerket Watch Co Reef Mariana

At a glance

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