Ball Watch caliber RR1801

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Brand:Ball Watch
Reference:RR1801
Base: ETA 2836-2
Movement:Automatic
Display:Analog
Diameter:25.60
Jewels:25
Reserve:38
Frequency:28800
Date:Date
Hands:Hours, Minutes, Seconds
Astronomical:Moonphase
Ball Watch caliber RR1801

RR1801 description

ETA 2836 modified for central moonphase.