Riley Watch Co Studio MoonphasevsSeiko Essentials Solar
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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.

Studio Moonphase

Essentials Solar
Diameter
34mm
30.5mm
Lug-to-Lug
40.5mm
37.7mm
lowest
Thickness
8.8mm
6.8mm
lowest
Water Resistance
50m
n/a
MSRP
$334
lowest
$375
Movement
Ronda 708
Seiko V-series (quartz)
Case
5 specsDiameter
34mm
30.5mm
Thickness
8.8mm
6.8mm
Lug-to-Lug
40.5mm
37.7mm
Lug Width
n/a
12mm
Water Resistance
50m
Splash Resistant
Crystal & Dial
3 specsCrystal
Mineral
Hardlex
Crystal Shape
n/a
Curved
Dial Color
n/a
n/a
Movement
1 specsCaliber
Ronda 708
Seiko V-series (quartz)
Pricing
1 specsMSRP
$334
$375
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