Which is cheaper, the Decima Gatekeeper or the Formex Reef 42 mm?

At MSRP the Decima Gatekeeper is the cheaper of the two at $599, against $2,414 for the Formex Reef 42 mm — a $1,815 gap before any retailer discounting.

Which is bigger, the Decima Gatekeeper or the Formex Reef 42 mm?

The Formex Reef 42 mm wears larger at 42mm versus 38mm for the Decima Gatekeeper — a 4mm difference across the dial.

Which has better water resistance, the Decima Gatekeeper or the Formex Reef 42 mm?

The Formex Reef 42 mm is rated to 300m versus 50m for the Decima Gatekeeper.

Which has a longer power reserve, the Decima Gatekeeper or the Formex Reef 42 mm?

The Formex Reef 42 mm carries a 56-hour power reserve against 42 hours on the Decima Gatekeeper.

What movement does the Decima Gatekeeper run compared to the Formex Reef 42 mm?

Both watches run automatic movements — the Decima Gatekeeper uses the Miyota 9039 and the Formex Reef 42 mm uses the Sellita SW300-1.

Side by side

Decima GatekeepervsFormex Reef 42 mm

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

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Decima Gatekeeper

gatekeeper-white

MSRP $599

Formex Reef 42 mm

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

MSRP $2,414

At a glance

12 of 29 specs differ

Diameter

Gatekeeper38mm

Reef 42 mm42mm

Power Reserve

Gatekeeper42h

Reef 42 mm56h

Water Resistance

Gatekeeper50m

Reef 42 mm300m

MSRP

Gatekeeper$599

Reef 42 mm$2,414

Full specifications

Case

6 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

White

Black

Lume

None

Super-LumiNova

Movement

2 specs

Caliber

Miyota 9039

Sellita SW300-1

Power Reserve

42h

56h

Pricing

1 specs

MSRP

$599

$2,414

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Decima GatekeepervsFormex Reef 42 mm

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