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

At MSRP the Formex Reef 42 mm is the cheaper of the two at $2,414, against $2,900 for the Sartory Billard SB04 — a $486 gap before any retailer discounting.

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

The Formex Reef 42 mm wears larger at 42mm versus 40mm for the Sartory Billard SB04 — a 2mm difference across the dial.

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

The Formex Reef 42 mm is rated to 300m versus 30m for the Sartory Billard SB04.

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

The Formex Reef 42 mm carries a 56-hour power reserve against 40 hours on the Sartory Billard SB04.

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

Both watches run automatic movements — the Formex Reef 42 mm uses the Sellita SW300-1 and the Sartory Billard SB04 uses the LJP G100.

Side by side

Formex Reef 42 mmvsSartory Billard SB04

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

MSRP $2,900

At a glance

11 of 29 specs differ

Diameter

Reef 42 mm42mm

SB0440mm

Power Reserve

Reef 42 mm56h

SB0440h

Water Resistance

Reef 42 mm300m

SB0430m

MSRP

Reef 42 mm$2,414

SB04$2,900

Full specifications

Case

6 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Lume

Super-LumiNova

None

Movement

2 specs

Caliber

Sellita SW300-1

LJP G100

Power Reserve

56h

40h

Pricing

1 specs

MSRP

$2,414

$2,900

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Formex Reef 42 mmvsSartory Billard SB04

At a glance

Full specifications

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