Which is cheaper, the Sheffield Deep Gray 300 or the Smiths Armstrong Siddeley?

At MSRP the Sheffield Deep Gray 300 is the cheaper of the two at $258, against $980 for the Smiths Armstrong Siddeley — a $722 gap before any retailer discounting.

Which has better water resistance, the Sheffield Deep Gray 300 or the Smiths Armstrong Siddeley?

The Sheffield Deep Gray 300 is rated to 300m versus 100m for the Smiths Armstrong Siddeley.

What movement does the Sheffield Deep Gray 300 run compared to the Smiths Armstrong Siddeley?

The Sheffield Deep Gray 300 runs a automatic caliber (Seiko NH35), while the Smiths Armstrong Siddeley runs a manual (Unitas 6498).

Side by side

Sheffield Deep Gray 300vsSmiths Armstrong Siddeley

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

Smiths Armstrong Siddeley

armstrong-siddeley-ltd-edition-prs-41

MSRP $980

At a glance

7 of 29 specs differ

Diameter

Deep Gray 30042mm

Armstrong Siddeley42mm

Power Reserve

Deep Gray 30040h

Armstrong Siddeley—

Water Resistance

Deep Gray 300300m

Armstrong Siddeley100m

MSRP

Deep Gray 300$258

Armstrong Siddeley$980

Full specifications

Case

2 specs

Thickness

13.8mm

12mm

Water Resistance

300m

100m

Crystal & Dial

1 specs

Dial Color

—

Cream

Movement

3 specs

Caliber

Seiko NH35

Unitas 6498

Type

Automatic

Manual

Power Reserve

40h

—

Pricing

1 specs

MSRP

—

$980

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Sheffield Deep Gray 300vsSmiths Armstrong Siddeley

At a glance

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