TECHNICAL INFORMATION
Patek Philippe Reference 5270 in 18K White Gold
Perpetual Calendar Chronograph
Movement: Caliber CH 29-535 PS Q
Manually wound mechanical movement, column-wheel chronograph, chronograph hand, instantaneously jumping 30-minute counter, and subsidiary seconds. Perpetual calendar with day, month, leap-year cycle and day/night indication in apertures, analog date. Moon phases.
Diameter: 32 mm
Height: 7 mm (of which 1.65 mm for the perpetual calendar)
Number of parts: 456 (of which 182 for the perpetual calendar)
Number of jewels: 33
Power reserve: 65 hours
Balance: Gyromax
Frequency: 28,800 semi-oscillations/hour (4 Hz)
Balance spring: Breguet
Functions: Two-position crown
– Pushed in: To wind the watch
– Pulled out: To set the time and stop the seconds hand
Displays: Center hour and minute hands
Chronograph hand (trotteuse) from the center
Subsidiary dials:
– 30-minute counter between 3 and 4 o’clock
– Subsidiary seconds between 8 and 9 o’clock
– Date at 6 o’clock
Apertures:
– Day and month on an axis beneath 12 o’clock
– Moon phase at 6 o’clock
– Day/night indication between 7 and 8 o’clock
– Leap year cycle between 4 and 5 o’clock
Corrector push pieces:
– Day corrector between 1 and 2 o’clock
– Month corrector between 12 and 1 o’clock
– Moon-phase corrector between 6 and 7 o’clock
– Date corrector between 11 and 12 o’clock
Delivered with correction stylus in ebony and 18K white gold
Chronograph pushers:
– Start and stop at 2 o’clock
– Reset at 4 o’clock
Hallmark: Patek Philippe Seal
Features:
Case: 18K white gold, sapphire crystal, screwed display back with sapphire crystal
window
Water-resistant to 30 meters
Case dimensions: Diameter: 41 mm
Height: 12.40 mm
Width between lugs: 21 mm
Dial: Silvery opalescent
Twelve applied hour markers in black-oxidized gold
Leaf-shaped hour and minute hands in black-oxidized gold
Counter-balanced chronograph hand from the center
Subsidiary dials, off-center, circular guilloché pattern
– Subsidiary seconds between 8 and 9 o’clock. Leaf-shaped hands in black-oxidized gold
– 30-minute counter between 3 and 4 o’clock: Leaf-shaped hands in black-oxidized gold
Strap: Alligator leather with square scales, hand-stitched, matte black, foldover
clasp in 18K white gold
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