Which is cheaper, the Aera Instruments D-1 Diver or the Sinn U18?

At MSRP the Aera Instruments D-1 Diver is the cheaper of the two at $2,300, against $3,488 for the Sinn U18 — a $1,188 gap before any retailer discounting.

Which has better water resistance, the Aera Instruments D-1 Diver or the Sinn U18?

The Sinn U18 is rated to 2000m versus 300m for the Aera Instruments D-1 Diver.

Which has a longer power reserve, the Aera Instruments D-1 Diver or the Sinn U18?

The Sinn U18 carries a 42-hour power reserve against 41 hours on the Aera Instruments D-1 Diver.

What movement does the Aera Instruments D-1 Diver run compared to the Sinn U18?

Both watches run automatic movements — the Aera Instruments D-1 Diver uses the Sellita SW200-1 and the Sinn U18 uses the Sellita SW300-1.

Side by side

Aera Instruments D-1 DivervsSinn U18

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

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Aera Instruments D-1 Diver

MSRP $2,300

See the full D-1 Diver

Sinn U18

U18

MSRP $3,488

See the full U18

Buy from Aera Instruments ↗

Buy used on eBay ↗

Buy from Sinn ↗

Buy used on eBay ↗

At a glance

16 of 29 specs differ

Diameter

D-1 Diver44mm

U1844mm

Power Reserve

D-1 Diver41h

U1842h

Water Resistance

D-1 Diver300m

U182,000m

MSRP

D-1 Diver$2,300

U18$3,488

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal Shape

—

AR Coating

—

Dial Color

—

Black

Indices

—

Movement

4 specs

Caliber

Sellita SW200-1

Sellita SW300-1

Beat Rate

0 vph

28,800 vph

Power Reserve

41h

42h

Jewels

Pricing

1 specs

MSRP

$2,300

$3,488

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Aera Instruments D-1 DivervsSinn U18

At a glance

Full specifications

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