Patek Philippe CH 28-520 QA 24H

Brand

Caliber

CH 28-520 QA 24H

Based on

Patek Philippe CH 28-520 IRM QA 24H

Type

Automatic

Power reserve

55 hours

Frequency

28 800 bph / 4 Hz

No. of jewels

40

Complications

Chronograph, Column wheel, Flyback, Annual calendar, Date, Day, Month, Day-night indicator, Triple calendar

Watches using the Patek Philippe CH 28-520 QA 24H

Patek Philippe Complications Flyback Chronograph Annual Calendar 42mm Ref:5905/1A-001

Patek Philippe Complications Flyback Chronograph Annual Calendar 42mm 5905/1A-001