Which is cheaper, the Formex Field Automatic or the Sheffield Deep Gray 300?

At MSRP the Sheffield Deep Gray 300 is the cheaper of the two at $258, against $881 for the Formex Field Automatic — a $623 gap before any retailer discounting.

Which is bigger, the Formex Field Automatic or the Sheffield Deep Gray 300?

The Sheffield Deep Gray 300 wears larger at 42mm versus 40mm for the Formex Field Automatic — a 2mm difference across the dial.

Which has better water resistance, the Formex Field Automatic or the Sheffield Deep Gray 300?

The Sheffield Deep Gray 300 is rated to 300m versus 150m for the Formex Field Automatic.

Which has a longer power reserve, the Formex Field Automatic or the Sheffield Deep Gray 300?

The Formex Field Automatic carries a 41-hour power reserve against 40 hours on the Sheffield Deep Gray 300.

What movement does the Formex Field Automatic run compared to the Sheffield Deep Gray 300?

Both watches run automatic movements — the Formex Field Automatic uses the Sellita SW200-1 and the Sheffield Deep Gray 300 uses the Seiko NH35.

Side by side

Formex Field AutomaticvsSheffield Deep Gray 300

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

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Formex Field Automatic

field-automatic-ash-grey-40-mm

MSRP $881

Sheffield Deep Gray 300

deep-gray-300

MSRP $258

At a glance

12 of 29 specs differ

Diameter

Field Automatic40mm

Deep Gray 30042mm

Power Reserve

Field Automatic41h

Deep Gray 30040h

Water Resistance

Field Automatic150m

Deep Gray 300300m

MSRP

Field Automatic$881

Deep Gray 300$258

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Dial Color

Ash Grey

—

Lume

Super-LumiNova

None

Movement

2 specs

Caliber

Sellita SW200-1

Seiko NH35

Power Reserve

41h

40h

Pricing

1 specs

MSRP

$881

—

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Formex Field AutomaticvsSheffield Deep Gray 300

At a glance

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