Speake-Marin's proprietary automatic caliber developed as part of the SMA movement family, first featured in the One & Two Openworked collection. Distinctive feature is the small seconds counter positioned at 1:30, creating a unique triangular visual balance between the barrel, oscillating mass, and seconds display. COSC certified for precision and reliability. The micro-rotor is integrated flush with the bridges to maintain a slim profile. Contains 171 components. The SMA01-3 variant adds a reverse wheel for bidirectional self-winding. Entirely assembled and adjusted by hand with diamond-polished black-coated gold angles and Geneva stripes on the bridges.
Movement Type
Automatic
Jewel Count
33 jewels
Power Reserve
52h
Frequency
28,800 vph (8 Hz)
Diameter
30mm
Height
5mm
Display Type
Analog
Rotor Type
micro-rotor
Winding
integrated micro-rotor
BRAND
Speake-MarinTYPE
AutomaticSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2014CALIBER FAMILY
SMACOUNTRY
SwitzerlandALSO KNOWN AS