Family: A&S
The A&S1309 is a manual-winding movement manufactured by Arnold & Son and introduced in 2009. Still in production, this in-house caliber features a double hemisphere perpetual moon phase complication, simultaneously displaying both northern and southern lunar cycles on the watch dial. The perpetual moon phase mechanism maintains accuracy for 122 years before requiring correction. This movement is used in Arnold & Son's Perpetual Moon collection.
Last updated 8 Jul 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Manual Winding
Display Type
Analog
Winding
Manual
COMPLICATIONS
Moon Phase
QUICK FACTS
BRAND
TYPE
Manual WindingSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2009CALIBER FAMILY
A&SFOR WATCH DEALERS
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