Side by side
Alexander James Watches A4 Prelude 37 GMTvsSeestern S450 Ocean Star
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
A4 Prelude 37 GMT37.4mm
S450 Ocean Star40mm
Power Reserve
A4 Prelude 37 GMT—
S450 Ocean Star41h
Water Resistance
A4 Prelude 37 GMT200m
S450 Ocean Star100m
MSRP
A4 Prelude 37 GMT—
S450 Ocean Star$299
Full specifications
Case
6 specsCategory
—
Diver
Diameter
37.4mm
40mm
Thickness
12.1mm
12mm
Lug-to-Lug
44.7mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m
Crystal & Dial
1 specsLume
BGW9
Tritium
Movement
5 specsCaliber
Seiko NH34
TMI NH35A
Beat Rate
28,800 vph
21,600 vph
Power Reserve
—
41h
Jewels
25
24
Complications
None
GMT, Date
Pricing
1 specsMSRP
—
$299
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