Which is cheaper, the Sheffield Deep Gray 300 or the Sinn U18?

At MSRP the Sheffield Deep Gray 300 is the cheaper of the two at $258, against $3,488 for the Sinn U18 — a $3,230 gap before any retailer discounting.

Which is bigger, the Sheffield Deep Gray 300 or the Sinn U18?

The Sinn U18 wears larger at 44mm versus 42mm for the Sheffield Deep Gray 300 — a 2mm difference across the dial.

Which has better water resistance, the Sheffield Deep Gray 300 or the Sinn U18?

The Sinn U18 is rated to 2000m versus 300m for the Sheffield Deep Gray 300.

Which has a longer power reserve, the Sheffield Deep Gray 300 or the Sinn U18?

The Sinn U18 carries a 42-hour power reserve against 40 hours on the Sheffield Deep Gray 300.

What movement does the Sheffield Deep Gray 300 run compared to the Sinn U18?

Both watches run automatic movements — the Sheffield Deep Gray 300 uses the Seiko NH35 and the Sinn U18 uses the SW300-1.

Side by side

Sheffield Deep Gray 300vsSinn U18

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

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Sheffield Deep Gray 300

deep-gray-300

MSRP $258

Sinn U18

U18

MSRP $3,488

At a glance

15 of 29 specs differ

Diameter

Deep Gray 30042mm

U1844mm

Power Reserve

Deep Gray 30040h

U1842h

Water Resistance

Deep Gray 300300m

U182,000m

MSRP

Deep Gray 300$258

U18$3,488

Full specifications

Case

8 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

—

AR Coating

Inner

—

Dial Color

—

Black

Indices

Applied

—

Movement

2 specs

Caliber

Seiko NH35

SW300-1

Power Reserve

40h

42h

Pricing

1 specs

MSRP

—

$3,488

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Sheffield Deep Gray 300vsSinn U18

At a glance

Full specifications

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