Which is cheaper, the Formex Reef 42 mm or the Sartory Billard SB04-E?

At MSRP the Formex Reef 42 mm is the cheaper of the two at $2,414, against $3,100 for the Sartory Billard SB04-E — a $686 gap before any retailer discounting.

Which is bigger, the Formex Reef 42 mm or the Sartory Billard SB04-E?

The Formex Reef 42 mm wears larger at 42mm versus 39.5mm for the Sartory Billard SB04-E — a 2.5mm difference across the dial.

Which has better water resistance, the Formex Reef 42 mm or the Sartory Billard SB04-E?

The Formex Reef 42 mm is rated to 300m versus 100m for the Sartory Billard SB04-E.

Which has a longer power reserve, the Formex Reef 42 mm or the Sartory Billard SB04-E?

The Sartory Billard SB04-E carries a 68-hour power reserve against 56 hours on the Formex Reef 42 mm.

What movement does the Formex Reef 42 mm run compared to the Sartory Billard SB04-E?

Both watches run automatic movements — the Formex Reef 42 mm uses the Sellita SW300-1 and the Sartory Billard SB04-E uses the LJP G101ET.

Side by side

Formex Reef 42 mmvsSartory Billard SB04-E

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

Sartory Billard SB04-E

MSRP $3,100

At a glance

12 of 29 specs differ

Diameter

Reef 42 mm42mm

SB04-E39.5mm

Power Reserve

Reef 42 mm56h

SB04-E68h

Water Resistance

Reef 42 mm300m

SB04-E100m

MSRP

Reef 42 mm$2,414

SB04-E$3,100

Full specifications

Case

6 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Lume

Super-LumiNova

Super-LumiNova BGW9

Movement

3 specs

Caliber

Sellita SW300-1

LJP G101ET

Power Reserve

56h

68h

Jewels

Pricing

1 specs

MSRP

$2,414

$3,100

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Formex Reef 42 mmvsSartory Billard SB04-E

At a glance

Full specifications

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