Side by side
Alexander James Watches A4 Prelude 37 GMTvsSerket Watch Co Reef Mariana
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
6 of 29 specs differDiameter
A4 Prelude 37 GMT37.4mm
Reef Mariana40mm
Power Reserve
A4 Prelude 37 GMT—
Reef Mariana—
Water Resistance
A4 Prelude 37 GMT200m
Reef Mariana200m
MSRP
A4 Prelude 37 GMT—
Reef Mariana$449
Full specifications
Case
3 specsDiameter
37.4mm
40mm
Thickness
12.1mm
13.2mm
Lug-to-Lug
44.7mm
47.5mm
Crystal & Dial
1 specsDial Color
White
Orange
Movement
1 specsCaliber
Seiko NH34
Seiko NH35
Pricing
1 specsMSRP
—
$449
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