Which is cheaper, the Hemel Sky Racer Mechanical or the Sartory Billard SB10?

At MSRP the Hemel Sky Racer Mechanical is the cheaper of the two at $550, against $3,800 for the Sartory Billard SB10 — a $3,250 gap before any retailer discounting.

Which is bigger, the Hemel Sky Racer Mechanical or the Sartory Billard SB10?

The Hemel Sky Racer Mechanical wears larger at 43mm versus 39.5mm for the Sartory Billard SB10 — a 3.5mm difference across the dial.

Which has better water resistance, the Hemel Sky Racer Mechanical or the Sartory Billard SB10?

The Sartory Billard SB10 is rated to 80m versus 50m for the Hemel Sky Racer Mechanical.

Which has a longer power reserve, the Hemel Sky Racer Mechanical or the Sartory Billard SB10?

The Sartory Billard SB10 carries a 55-hour power reserve against 40 hours on the Hemel Sky Racer Mechanical.

What movement does the Hemel Sky Racer Mechanical run compared to the Sartory Billard SB10?

The Hemel Sky Racer Mechanical runs a manual caliber (Seagull ST19), while the Sartory Billard SB10 runs a automatic (LJP G100).

Side by side

Hemel Sky Racer MechanicalvsSartory Billard SB10

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

Hemel Sky Racer Mechanical

HF37MNB

MSRP $550

Sartory Billard SB10

MSRP $3,800

At a glance

13 of 29 specs differ

Diameter

Sky Racer Mechanical43mm

SB1039.5mm

Power Reserve

Sky Racer Mechanical40h

SB1055h

Water Resistance

Sky Racer Mechanical50m

SB1080m

MSRP

Sky Racer Mechanical$550

SB10$3,800

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Crystal

Domed Sapphire

Sapphire

Lume

None

Super-LumiNova BGW9

Movement

4 specs

Caliber

Seagull ST19

LJP G100

Type

Manual

Automatic

Power Reserve

40h

55h

Complications

None

Jumping Hour

Pricing

1 specs

MSRP

$550

$3,800

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Hemel Sky Racer MechanicalvsSartory Billard SB10

At a glance

Full specifications

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