Side by side
Seestern S450 Ocean StarvsSheffield Deep Gray 300
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
S450 Ocean Star40mm
Deep Gray 30042mm
Power Reserve
S450 Ocean Star41h
Deep Gray 30040h
Water Resistance
S450 Ocean Star100m
Deep Gray 300300m
MSRP
S450 Ocean Star$299
Deep Gray 300$258
Full specifications
Case
7 specsCategory
Diver
—
Diameter
40mm
42mm
Thickness
12mm
13.8mm
Lug-to-Lug
48mm
52mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
300m
Crystal & Dial
2 specsDial Color
White
—
Lume
Tritium
None
Movement
5 specsCaliber
TMI NH35A
Seiko NH35
Beat Rate
21,600 vph
28,800 vph
Power Reserve
41h
40h
Jewels
24
25
Complications
GMT, Date
None
Pricing
1 specsMSRP
$299
—
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