Breguet caliber 581SQ

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Brand:Breguet
Reference:581SQ
Base: Breguet 581
Movement:Automatic
Display:Analog
Diameter:36.10
Jewels:42
Reserve:80
Frequency:28800
Hands:Hours, Minutes, Small Seconds
Additionals:Tourbillon Escapement, Skeleton

581SQ description

Self-winding movement with peripheral oscillating weight. Balance spring and escape wheel in silicon.