Side by side
Seestern S450 Ocean StarvsSheffield 1A 38
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
S450 Ocean Star40mm
1A 3838mm
Power Reserve
S450 Ocean Star41h
1A 38—
Water Resistance
S450 Ocean Star100m
1A 38200m
MSRP
S450 Ocean Star$299
1A 38$238
Full specifications
Case
5 specsDiameter
40mm
38mm
Thickness
12mm
12.8mm
Lug-to-Lug
48mm
46mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
200m
Crystal & Dial
2 specsDial Color
White
Blue
Lume
Tritium
None
Movement
5 specsCaliber
TMI NH35A
Seiko NH35
Beat Rate
21,600 vph
28,800 vph
Power Reserve
41h
—
Jewels
24
25
Complications
GMT, Date
None
Pricing
1 specsMSRP
$299
$238
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