Which is cheaper, the Sheffield Deep Gray 300 or the Seiko 5KX?

At MSRP the Sheffield Deep Gray 300 is the cheaper of the two at $258, against $350 for the Seiko 5KX — a $92 gap before any retailer discounting.

Which is bigger, the Sheffield Deep Gray 300 or the Seiko 5KX?

The Seiko 5KX 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 5KX?

The Sheffield Deep Gray 300 is rated to 300m versus 10m for the Seiko 5KX.

Which has a longer power reserve, the Sheffield Deep Gray 300 or the Seiko 5KX?

The Seiko 5KX carries a 41-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 5KX?

Both watches run automatic movements — the Sheffield Deep Gray 300 uses the Seiko NH35 and the Seiko 5KX uses the 4R36.

Side by side

Sheffield Deep Gray 300vsSeiko 5KX

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 5KX

srpd51

MSRP $350

At a glance

12 of 29 specs differ

Diameter

Deep Gray 30042mm

5KX42.5mm

Power Reserve

Deep Gray 30040h

5KX41h

Water Resistance

Deep Gray 300300m

5KX100m

MSRP

Deep Gray 300$258

5KX$350

Full specifications

Case

5 specs

Crystal & Dial

3 specs

Crystal

Sapphire

Hardlex

Dial Color

—

Black

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Seiko NH35

4R36

Power Reserve

40h

41h

Jewels

Pricing

1 specs

MSRP

—

$350

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Sheffield Deep Gray 300vsSeiko 5KX

At a glance

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