Side by side
MKII HellionvsSheffield Deep Gray 300
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
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 specsDiameter
39mm
42mm
Thickness
13.55mm
13.8mm
Lug-to-Lug
48.5mm
52mm
Lug Width
20mm
22mm
Water Resistance
100m
300m
Crystal & Dial
2 specsDial Color
Black
—
Lume
SuperLuminova
None
Movement
2 specsCaliber
TMI NH38
Seiko NH35
Power Reserve
—
40h
Pricing
1 specsMSRP
$649
—
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