Which is cheaper, the MKII Hellion or the Sheffield Deep Gray 300?

At MSRP the Sheffield Deep Gray 300 is the cheaper of the two at $258, against $649 for the MKII Hellion — a $391 gap before any retailer discounting.

Which is bigger, the MKII Hellion or the Sheffield Deep Gray 300?

The Sheffield Deep Gray 300 wears larger at 42mm versus 39mm for the MKII Hellion — a 3mm difference across the dial.

Which has better water resistance, the MKII Hellion or the Sheffield Deep Gray 300?

The Sheffield Deep Gray 300 is rated to 300m versus 100m for the MKII Hellion.

What movement does the MKII Hellion run compared to the Sheffield Deep Gray 300?

Both watches run automatic movements — the MKII Hellion uses the TMI NH38 and the Sheffield Deep Gray 300 uses the Seiko NH35.

Side by side

MKII HellionvsSheffield Deep Gray 300

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

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MKII Hellion

MSRP $649

Sheffield Deep Gray 300

deep-gray-300

MSRP $258

At a glance

10 of 29 specs differ

Diameter

Hellion39mm

Deep Gray 30042mm

Power Reserve

Hellion—

Deep Gray 30040h

Water Resistance

Hellion100m

Deep Gray 300300m

MSRP

Hellion$649

Deep Gray 300$258

Full specifications

Case

5 specs

Diameter

39mm

42mm

Thickness

13.55mm

13.8mm

Lug-to-Lug

48.5mm

52mm

Lug Width

20mm

22mm

Water Resistance

100m

300m

Crystal & Dial

2 specs

Dial Color

Black

—

Lume

SuperLuminova

None

Movement

2 specs

Caliber

TMI NH38

Seiko NH35

Power Reserve

—

40h

Pricing

1 specs

MSRP

$649

—

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MKII HellionvsSheffield Deep Gray 300

At a glance

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