Patek Philippe · Manual Wind

CH 29‑535 PS 1/10

1/10th of a second monopusher chronograph. Central chronograph second hand making one round per minute. Central 1/10th of a second handmaking one round every 12 seconds. Instantaneous 30-minute counter. Small seconds. Diameter: 29.6 mm. Height: 6.96 mm. Number of parts: 396. Power reserve with the chronograph disengaged: min. 48 hours. Escapement: Pulsomax® with lever and escape wheel in Silinvar®. Balance: Gyromax® in Silinvar®. Frequency: 36,000 semi-oscillations/hour (5 Hz). Balance spring: Spiromax®