Side by side
Jack Mason Ellum Manual WindvsHelgray Poseidon Diver (Automatic)
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Ellum Manual Wind38mm
Poseidon Diver (Automatic)40mm
Power Reserve
Ellum Manual Wind42h
Poseidon Diver (Automatic)40h
Water Resistance
Ellum Manual Wind50m
Poseidon Diver (Automatic)300m
MSRP
Ellum Manual Wind$799
Poseidon Diver (Automatic)$249
Full specifications
Case
5 specsCategory
—
Diver
Diameter
38mm
40mm
Thickness
9mm
12mm
Lug-to-Lug
45mm
46mm
Water Resistance
50m
300m
Crystal & Dial
1 specsDial Color
—
Black
Movement
3 specsCaliber
Sellita SW210
NH35 Warranty
Type
Manual
Automatic
Power Reserve
42h
40h
Pricing
1 specsMSRP
$799
$249
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