The Soprod A10 (Alternance 10) is a Swiss made automatic movement based on the Seiko 4L25 design but produced in Switzerland under license. Introduced in 2004, it was designed as an ETA 2892-A2 alternative with identical dimensions and dial feet locations. Features include a counter-clockwise balance cock and automatic winding rotor mounted with three screws and seven ball bearings. The A10 was renamed to M100 in 2016.
Movement Type
Automatic
Jewel Count
25 jewels
Power Reserve
42h
Frequency
28,800 vph (8 Hz)
Diameter
25.6mm
Height
3.6mm
Display Type
Analog
Rotor Type
bidirectional
Shock Protection
Incabloc
BRAND
SoprodTYPE
AutomaticSTATUS
DiscontinuedMANUFACTURE
ÉbaucheLAUNCH YEAR
2004CALIBER FAMILY
A10COUNTRY
SwitzerlandALSO KNOWN AS