Side by side
Alexander James Watches A3 OmenvsSerket Watch Co Reef Mariana
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
A3 Omen38mm
Reef Mariana40mm
Power Reserve
A3 Omen40h
Reef Mariana—
Water Resistance
A3 Omen100m
Reef Mariana200m
MSRP
A3 Omen$650
Reef Mariana$449
Full specifications
Case
4 specsDiameter
38mm
40mm
Thickness
10.4mm
13.2mm
Lug-to-Lug
46mm
47.5mm
Water Resistance
100m
200m
Crystal & Dial
2 specsDial Color
—
Orange
Lume
None
BGW9
Movement
2 specsCaliber
Miyota 9039
Seiko NH35
Power Reserve
40h
—
Pricing
1 specsMSRP
$650
$449
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