PATEK PHILIPPE COMPLICATIONS REF. 5212A-001 CALATRAVA WEEKLY CALENDAR, CAL. 26-330 S C J SE SELF-WINDING

5212A - COMPLICATIONS 
SELF-WINDING

A NEW COMPLICATION IN A STEEL CASE
Patek Philippe introduces a new complication to its calendar watches: the weekly calendar, a semi-integrated mechanism displaying the current week number, in addition to the day and date. A particularly useful feature for the modern businessman.
This steel Calatrava Weekly Calendar also houses a completely new self-winding movement with optimized performance. The dial is notable for its exclusive letters and numerals which authentically reproduce handwritten characters.
WATCH
Self-winding mechanical movement. Caliber 26‑330 S C J SE. Day and week number by hands. Date in an aperture. Sweep seconds hand.
DIAL
Silvery opaline, blackened gold applied hour markers.
CASE
Steel. Sapphire-crystal case back. Water resistant to 30 m. Diameter: 40 mm. Height: 10.79 mm.
STRAP
Calfskin, hand-stitched, light brown. Prong buckle.

CALIBER
26-330 S C J SE
SELF-WINDING
Weekly calendar. Date. Sweep seconds hand. Diameter: 27 mm. Height: 4.82 mm. Parts: 304. Jewels: 50. Power reserve: min. 35 hours - max. 45 hours. Central rotor in 21K gold, unidirectional winding. Balance: Gyromax®. Semi-oscillation/hour: 28 800 (4 Hz). Balance spring: Spiromax®. Hallmark: Patek Philippe Seal.