Which is cheaper, the Fortis Stratoliner S-41 or the Sartory Billard SB04-E?

At MSRP the Sartory Billard SB04-E is the cheaper of the two at $3,100, against $5,450 for the Fortis Stratoliner S-41 — a $2,350 gap before any retailer discounting.

Which is bigger, the Fortis Stratoliner S-41 or the Sartory Billard SB04-E?

The Fortis Stratoliner S-41 wears larger at 41mm versus 39.5mm for the Sartory Billard SB04-E — a 1.5mm difference across the dial.

Which has better water resistance, the Fortis Stratoliner S-41 or the Sartory Billard SB04-E?

The Fortis Stratoliner S-41 is rated to 200m versus 100m for the Sartory Billard SB04-E.

Which has a longer power reserve, the Fortis Stratoliner S-41 or the Sartory Billard SB04-E?

The Sartory Billard SB04-E carries a 68-hour power reserve against 60 hours on the Fortis Stratoliner S-41.

What movement does the Fortis Stratoliner S-41 run compared to the Sartory Billard SB04-E?

Both watches run automatic movements — the Fortis Stratoliner S-41 uses the Manufacture Caliber WERK 17 and the Sartory Billard SB04-E uses the LJP G101ET.

Side by side

Fortis Stratoliner S-41vsSartory Billard SB04-E

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

Fortis Stratoliner S-41

S-41

MSRP $5,450

Sartory Billard SB04-E

MSRP $3,100

At a glance

13 of 29 specs differ

Diameter

Stratoliner S-4141mm

SB04-E39.5mm

Power Reserve

Stratoliner S-4160h

SB04-E68h

Water Resistance

Stratoliner S-41200m

SB04-E100m

MSRP

Stratoliner S-41$5,450

SB04-E$3,100

Full specifications

Case

6 specs

Crystal & Dial

3 specs

AR Coating

Inner

Yes

Dial Color

White

Black

Lume

None

Super-LumiNova BGW9

Movement

3 specs

Caliber

Manufacture Caliber WERK 17

LJP G101ET

Power Reserve

60h

68h

Jewels

Pricing

1 specs

MSRP

$5,450

$3,100

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Fortis Stratoliner S-41vsSartory Billard SB04-E

At a glance

Full specifications

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