Manufacturer Armin Strom Caliber Number ARF21 Based On Armin Strom ARF15 Movement Type Mechanical, manual-wind In-House? Yes Diameter 37.2mm Height...
Double Hairspring
Manufacturer H. Moser & Cie Caliber Number HMC 804 Movement Type Automatic, self-winding mechanical, tourbillon In-House? Yes Diameter 32mm Height...