Side by side
Duckworth Prestex Belmont 300 AutomaticvsSerket 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
Belmont 300 Automatic42mm
Reef Mariana40mm
Power Reserve
Belmont 300 Automatic38h
Reef Mariana—
Water Resistance
Belmont 300 Automatic300m
Reef Mariana200m
MSRP
Belmont 300 Automatic$750
Reef Mariana$449
Full specifications
Case
4 specsDiameter
42mm
40mm
Thickness
13mm
13.2mm
Lug-to-Lug
50mm
47.5mm
Water Resistance
300m
200m
Crystal & Dial
2 specsDial Color
—
Orange
Lume
None
BGW9
Movement
2 specsCaliber
Miyota 9039
Seiko NH35
Power Reserve
38h
—
Pricing
1 specsMSRP
$750
$449
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