Side by side
Hemel HD24 AutomaticvsHelgray 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
HD24 Automatic40mm
Speedster (Racing Light Blue)39mm
Power Reserve
HD24 Automatic40h
Speedster (Racing Light Blue)40h
Water Resistance
HD24 Automatic200m
Speedster (Racing Light Blue)30m
MSRP
HD24 Automatic$300
Speedster (Racing Light Blue)$299
Full specifications
Case
6 specsCategory
Diver
Chronograph
Diameter
40mm
39mm
Thickness
13mm
12mm
Lug-to-Lug
48mm
46mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
30m
Crystal & Dial
2 specsCrystal
Domed Sapphire
Sapphire
Dial Color
Gallant USAF Edition
Black
Movement
1 specsCaliber
Seiko NH38A
Miyota 6S21
Pricing
1 specsMSRP
$300
$299
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