Side by side
Serket Watch Co Reef MarianavsHelgray Speedster (Racing Light Blue)
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
Reef Mariana40mm
Speedster (Racing Light Blue)39mm
Power Reserve
Reef Mariana—
Speedster (Racing Light Blue)40h
Water Resistance
Reef Mariana200m
Speedster (Racing Light Blue)30m
MSRP
Reef Mariana$449
Speedster (Racing Light Blue)$299
Full specifications
Case
5 specsCategory
—
Chronograph
Diameter
40mm
39mm
Thickness
13.2mm
12mm
Lug-to-Lug
47.5mm
46mm
Water Resistance
200m
30m
Crystal & Dial
2 specsDial Color
Orange
Black
Lume
BGW9
None
Movement
2 specsCaliber
Seiko NH35
Miyota 6S21
Power Reserve
—
40h
Pricing
1 specsMSRP
$449
$299
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