Side by side
Helgray Speedster (Silver Panda)vsSeiko Prospex Sea
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Speedster (Silver Panda)39mm
Prospex Sea34mm
Power Reserve
Speedster (Silver Panda)40h
Prospex Sea40h
Water Resistance
Speedster (Silver Panda)30m
Prospex Sea200m
MSRP
Speedster (Silver Panda)$299
Prospex Sea$795
Full specifications
Case
6 specsCategory
Chronograph
Diver
Diameter
39mm
34mm
Thickness
12mm
8.7mm
Lug-to-Lug
46mm
40.8mm
Lug Width
20mm
16mm
Water Resistance
30m
200m
Crystal & Dial
2 specsAR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)
Movement
2 specsCaliber
Miyota 6S21
6N01
Type
Automatic
Quartz
Pricing
1 specsMSRP
$299
$795
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