Which is bigger, the Robot Watches SPECTRA or the Sartory Billard SB04-E?

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

Which has better water resistance, the Robot Watches SPECTRA or the Sartory Billard SB04-E?

The Sartory Billard SB04-E is rated to 100m versus 50m for the Robot Watches SPECTRA.

Which has a longer power reserve, the Robot Watches SPECTRA or the Sartory Billard SB04-E?

The Sartory Billard SB04-E carries a 68-hour power reserve against 65 hours on the Robot Watches SPECTRA.

What movement does the Robot Watches SPECTRA run compared to the Sartory Billard SB04-E?

Both watches run automatic movements — the Robot Watches SPECTRA uses the G100 and the Sartory Billard SB04-E uses the LJP G101ET.

Side by side

Robot Watches SPECTRAvsSartory Billard SB04-E

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

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Robot Watches SPECTRA

Sartory Billard SB04-E

MSRP $3,100

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Buy from Sartory Billard ↗

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At a glance

11 of 29 specs differ

Diameter

SPECTRA39mm

SB04-E39.5mm

Power Reserve

SPECTRA65h

SB04-E68h

Water Resistance

SPECTRA50m

SB04-E100m

MSRP

SPECTRA—

SB04-E$3,100

Full specifications

Case

4 specs

Crystal & Dial

3 specs

AR Coating

Inner

Yes

Dial Color

—

Black

Lume

None

Super-LumiNova BGW9

Movement

3 specs

Caliber

G100

LJP G101ET

Power Reserve

65h

68h

Jewels

Pricing

1 specs

MSRP

—

$3,100

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