Which is cheaper, the Sinn 910 Eintracht or the Aera Instruments C-1?

At MSRP the Aera Instruments C-1 is the cheaper of the two at $2,200, against $5,346 for the Sinn 910 Eintracht — a $3,146 gap before any retailer discounting.

Which is bigger, the Sinn 910 Eintracht or the Aera Instruments C-1?

The Aera Instruments C-1 wears larger at 42mm versus 41.5mm for the Sinn 910 Eintracht — a 0.5mm difference across the dial.

Which has a longer power reserve, the Sinn 910 Eintracht or the Aera Instruments C-1?

The Aera Instruments C-1 carries a 56-hour power reserve against 38 hours on the Sinn 910 Eintracht.

What movement does the Sinn 910 Eintracht run compared to the Aera Instruments C-1?

Both watches run automatic movements — the Sinn 910 Eintracht uses the Sinn SZ05 and the Aera Instruments C-1 uses the Sellita SW510.

Side by side

Sinn 910 EintrachtvsAera Instruments C-1

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

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Sinn 910 Eintracht

910 Eintracht

MSRP $5,346

See the full 910 Eintracht

MSRP $2,200

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At a glance

15 of 29 specs differ

Diameter

910 Eintracht41.5mm

C-142mm

Power Reserve

910 Eintracht38h

C-156h

Water Resistance

910 Eintracht100m

C-1100m

MSRP

910 Eintracht$5,346

C-1$2,200

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal Shape

—

AR Coating

—

Dial Color

Black

Cloud

Indices

—

Movement

4 specs

Caliber

Sinn SZ05

Sellita SW510

Beat Rate

28,800 vph

0 vph

Power Reserve

38h

56h

Jewels

Pricing

1 specs

MSRP

$5,346

$2,200

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Sinn 910 EintrachtvsAera Instruments C-1

At a glance

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