Side by side
Dryden Heartlander AutomaticvsSerket Watch Co Reef Mariana
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Heartlander Automatic38mm
Reef Mariana40mm
Power Reserve
Heartlander Automatic40h
Reef Mariana—
Water Resistance
Heartlander Automatic101m
Reef Mariana200m
MSRP
Heartlander Automatic$600
Reef Mariana$449
Full specifications
Case
5 specsCategory
Field
—
Diameter
38mm
40mm
Thickness
11.2mm
13.2mm
Lug-to-Lug
46mm
47.5mm
Water Resistance
101m
200m
Crystal & Dial
3 specsCrystal
Domed Sapphire
Sapphire
Dial Color
Goldfinch
Orange
Lume
None
BGW9
Movement
2 specsCaliber
Miyota 9039
Seiko NH35
Power Reserve
40h
—
Pricing
1 specsMSRP
$600
$449
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