Side by side
Jack Mason Ellum Manual WindvsSeestern S450 Ocean Star
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
Ellum Manual Wind38mm
S450 Ocean Star40mm
Power Reserve
Ellum Manual Wind42h
S450 Ocean Star41h
Water Resistance
Ellum Manual Wind50m
S450 Ocean Star100m
MSRP
Ellum Manual Wind$799
S450 Ocean Star$299
Full specifications
Case
6 specsCategory
—
Diver
Diameter
38mm
40mm
Thickness
9mm
12mm
Lug-to-Lug
45mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
100m
Crystal & Dial
2 specsDial Color
—
White
Lume
None
Tritium
Movement
6 specsCaliber
Sellita SW210
TMI NH35A
Type
Manual
Automatic
Beat Rate
28,800 vph
21,600 vph
Power Reserve
42h
41h
Jewels
25
24
Complications
None
GMT, Date
Pricing
1 specsMSRP
$799
$299
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