Side by side
Northern Star Watch SentinelvsSeestern S450 Ocean Star
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
Sentinel40.5mm
S450 Ocean Star40mm
Power Reserve
Sentinel42h
S450 Ocean Star41h
Water Resistance
Sentinel50m
S450 Ocean Star100m
MSRP
Sentinel$649
S450 Ocean Star$299
Full specifications
Case
7 specsCategory
—
Diver
Diameter
40.5mm
40mm
Thickness
10.1mm
12mm
Lug-to-Lug
43.72mm
48mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
100m
Crystal & Dial
1 specsLume
None
Tritium
Movement
5 specsCaliber
Miyota 90S5
TMI NH35A
Beat Rate
28,800 vph
21,600 vph
Power Reserve
42h
41h
Jewels
25
24
Complications
None
GMT, Date
Pricing
1 specsMSRP
$649
$299
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