Casio EFR-574DEvsHelgray Speedster
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

EFR-574DE

Speedster
Diameter
42.3mm
39mm
Lug-to-Lug
47.5mm
46mm
lowest
Thickness
11.4mm
n/a
Water Resistance
100m
highest
30m
MSRP
$220
$149
lowest
Movement
Quartz
Miyota 6S21
Case
6 specsDiameter
42.3mm
39mm
Thickness
11.4mm
n/a
Lug-to-Lug
47.5mm
46mm
Lug Width
n/a
20mm
Finish
n/a
n/a
Water Resistance
100m
30m
Crystal & Dial
3 specsCrystal
Mineral
Sapphire
AR Coating
No
n/a
Dial Color
Silver
n/a
Movement
2 specsCaliber
n/a
Miyota 6S21
Power Reserve
n/a
0h
Pricing
1 specsMSRP
$220
$149
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