Hamilton Jazzmaster QuartzvsRiley Watch Co Studio Moonphase
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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.

Jazzmaster Quartz

Studio Moonphase
Diameter
26mm
34mm
Lug-to-Lug
n/a
40.5mm
Thickness
7.8mm
lowest
8.8mm
Water Resistance
50m
50m
MSRP
$825
$334
lowest
Movement
F03.105
Ronda 708
Case
4 specsDiameter
26mm
34mm
Thickness
7.85mm
8.8mm
Lug-to-Lug
n/a
40.5mm
Lug Width
12mm
n/a
Crystal & Dial
2 specsCrystal
Sapphire
Mineral
Dial Color
Blue
n/a
Movement
1 specsCaliber
F03.105
Ronda 708
Pricing
1 specsMSRP
$825
$334
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