PERRELET – MOVEMENTS P-391 Movement Mechanical self-winding movement First Class Open Heart P-391 / In-house caliber Functions Central hands indicating hours, minutes and seconds Dimensions Thickness (oscillating weight included) 3.85 mm Fitting diameter 25.60 mm Total movement diameter 26.20 mm Specifications Vibrations per hour 28,800 A/h (4 Hz) Number of rubies 25 Number of components 92 Autonomy in hours (fully wound up) 42 hours Special finishing Specialty Open see-through balance wheel Main plate Circular grained, rhodium plated Bridges Côte de Genève, rhodium plated Oscillating weight Perrelet hollowed and personalized Systems Automatic winding mechanism with ballbearing-mounted oscillating weight Anti-shock system on the balance wheel (Incabloc® shock absorbers) Fine adjustment device TRADE CATALOGUE 2014 - 2015 | 11
PERRELET_TRADE%20CATALOGUE%202014-2015
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