Which is cheaper, the Sheffield Deep Gray 300 or the Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition?

At MSRP the Sheffield Deep Gray 300 is the cheaper of the two at $258, against $3,000 for the Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition — a $2,742 gap before any retailer discounting.

Which is bigger, the Sheffield Deep Gray 300 or the Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition?

The Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition wears larger at 42.5mm versus 42mm for the Sheffield Deep Gray 300 — a 0.5mm difference across the dial.

Which has better water resistance, the Sheffield Deep Gray 300 or the Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition?

The Sheffield Deep Gray 300 is rated to 300m versus 10m for the Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition.

Which has a longer power reserve, the Sheffield Deep Gray 300 or the Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition?

The Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition carries a 45-hour power reserve against 40 hours on the Sheffield Deep Gray 300.

What movement does the Sheffield Deep Gray 300 run compared to the Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition?

Both watches run automatic movements — the Sheffield Deep Gray 300 uses the Seiko NH35 and the Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition uses the 8R46.

Side by side

Sheffield Deep Gray 300vsSeiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition

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

Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition

srq045j1

MSRP $3,000

At a glance

14 of 29 specs differ

Diameter

Deep Gray 30042mm

Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition42.5mm

Power Reserve

Deep Gray 30040h

Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition45h

Water Resistance

Deep Gray 300300m

Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition100m

MSRP

Deep Gray 300$258

Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition$3,000

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

—

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Seiko NH35

8R46

Power Reserve

40h

45h

Jewels

Pricing

1 specs

MSRP

—

$3,000

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Sheffield Deep Gray 300vsSeiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition

At a glance

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