Side by side
Casio GST-S100GvsSeiko Prospex SPEEDTIMER
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
GST-S100G52.4mm
Prospex SPEEDTIMER41.4mm
Power Reserve
GST-S100G—
Prospex SPEEDTIMER—
Water Resistance
GST-S100G200m
Prospex SPEEDTIMER100m
MSRP
GST-S100G$330
Prospex SPEEDTIMER$750
Full specifications
Case
8 specsCategory
Sport
Chronograph
Diameter
52.4mm
41.4mm
Thickness
16.1mm
13mm
Lug-to-Lug
59.1mm
45.9mm
Lug Width
—
21mm
Material
Resin / Stainless steel
Stainless Steel
Finish
—
—
Water Resistance
200m
100m
Crystal & Dial
5 specsCrystal
Mineral
Sapphire
Crystal Shape
—
Curved
AR Coating
No
Anti-reflective coating on inner surface
Dial Color
Black
—
Lume
None
LumiBrite on hands and index(es)
Movement
2 specsCaliber
—
V192
Power Reserve
—
0h
Pricing
1 specsMSRP
$330
$750
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