Which is cheaper, the Formex Reef 42 mm or the Rolex Deepsea Challenge?

At MSRP the Formex Reef 42 mm is the cheaper of the two at $2,414, against $29,100 for the Rolex Deepsea Challenge — a $26,686 gap before any retailer discounting.

Which is bigger, the Formex Reef 42 mm or the Rolex Deepsea Challenge?

The Rolex Deepsea Challenge wears larger at 50mm versus 42mm for the Formex Reef 42 mm — a 8mm difference across the dial.

Which has better water resistance, the Formex Reef 42 mm or the Rolex Deepsea Challenge?

The Rolex Deepsea Challenge is rated to 11000m versus 300m for the Formex Reef 42 mm.

Which has a longer power reserve, the Formex Reef 42 mm or the Rolex Deepsea Challenge?

The Rolex Deepsea Challenge carries a 70-hour power reserve against 56 hours on the Formex Reef 42 mm.

What movement does the Formex Reef 42 mm run compared to the Rolex Deepsea Challenge?

Both watches run automatic movements — the Formex Reef 42 mm uses the Sellita SW300-1 and the Rolex Deepsea Challenge uses the 3230.

Side by side

Formex Reef 42 mmvsRolex Deepsea Challenge

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

Rolex Deepsea Challenge

126067

MSRP $29,100

At a glance

15 of 29 specs differ

Diameter

Reef 42 mm42mm

Deepsea Challenge50mm

Power Reserve

Reef 42 mm56h

Deepsea Challenge70h

Water Resistance

Reef 42 mm300m

Deepsea Challenge1,000m

MSRP

Reef 42 mm$2,414

Deepsea Challenge$29,100

Full specifications

Case

8 specs

Diameter

42mm

50mm

Thickness

11.4mm

9.5mm

Lug-to-Lug

47mm

46mm

Lug Width

22mm

—

Material

Stainless Steel

RLX Titanium

Finish

Brushed and polished

RLX titanium

Water Resistance

300m

1000m

Caseback

Solid

Monobloc middle case, screw-down case back and winding crown. Rolex Ringlock system case architecture with nitrogen-alloyed steel ring and helium escape valve

Crystal & Dial

3 specs

AR Coating

Inner

—

Indices

Applied

Index

Lume

Super-LumiNova

Chromalight

Movement

3 specs

Caliber

Sellita SW300-1

3230

Power Reserve

56h

70h

Jewels

Pricing

1 specs

MSRP

$2,414

$29,100

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Formex Reef 42 mmvsRolex Deepsea Challenge

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