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1815 Rattrapante Perpetual Calendar Handwerkskunst
Lange manufacture caliber: L101.1
Number of parts movement/jewels: 631/43
Screwed gold chatons: 4
Escapement: Lever escapement
Oscillator: Shock-resistant screw balance, LZ frequency 21,600 semi-oscillations per
hour, precision beat adjustment system with lateral setscrew and whiplash
spring
Power reserve: 42 hours when fully wound
Functions: Time indicated in hours, minutes and subsidiary seconds; rattrapante
chronograph with minute counter; perpetual calendar with date, day of
week, month, moon phase and leap year; power-reserve indicator
Case measures: Diameter: 41.9 millimeters, height: 15.8 millimeters
Movement measures: Diameter: 32.6 millimeters, height: 9.1 millimeters
Case versions: White gold
Limited edition: 20 watches
И несколько видео по технике создания этого чуда:
