Which is cheaper, the Sartory Billard SB04-E or the Zelos Comet 39?

At MSRP the Zelos Comet 39 is the cheaper of the two at $2,499, against $3,100 for the Sartory Billard SB04-E — a $601 gap before any retailer discounting.

Which is bigger, the Sartory Billard SB04-E or the Zelos Comet 39?

The Sartory Billard SB04-E wears larger at 39.5mm versus 39mm for the Zelos Comet 39 — a 0.5mm difference across the dial.

Which has better water resistance, the Sartory Billard SB04-E or the Zelos Comet 39?

The Sartory Billard SB04-E is rated to 100m versus 50m for the Zelos Comet 39.

Which has a longer power reserve, the Sartory Billard SB04-E or the Zelos Comet 39?

The Sartory Billard SB04-E carries a 68-hour power reserve against 40 hours on the Zelos Comet 39.

What movement does the Sartory Billard SB04-E run compared to the Zelos Comet 39?

The Sartory Billard SB04-E runs a automatic caliber (LJP G101ET), while the Zelos Comet 39 runs a manual (ETA/Peseux 7001).

Side by side

Sartory Billard SB04-EvsZelos Comet 39

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

Sartory Billard SB04-E

MSRP $3,100

Zelos Comet 39

zelos-comet-39

MSRP $2,499

At a glance

14 of 29 specs differ

Diameter

SB04-E39.5mm

Comet 3939mm

Power Reserve

SB04-E68h

Comet 3940h

Water Resistance

SB04-E100m

Comet 3950m

MSRP

SB04-E$3,100

Comet 39$2,499

Full specifications

Case

5 specs

Diameter

39.5mm

39mm

Thickness

10.3mm

7.6mm

Lug-to-Lug

46mm

39mm

Material

Stainless Steel

316L Stainless Steel

Water Resistance

100m

50m

Crystal & Dial

4 specs

Crystal

Sapphire

Domed Sapphire

AR Coating

Yes

Inner

Dial Color

Black

Tantalum LE

Lume

Super-LumiNova BGW9

None

Movement

4 specs

Caliber

LJP G101ET

ETA/Peseux 7001

Type

Automatic

Manual

Power Reserve

68h

40h

Jewels

Pricing

1 specs

MSRP

$3,100

$2,499

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Sartory Billard SB04-EvsZelos Comet 39

At a glance

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