Patek Philippe R 27

The R-27 is an automatic minute repeater movement manufactured by Patek Philippe. It measures 28 mm in diameter and 3.05 mm in height, operates at 21,600 vph (3 Hz), and delivers a 48-hour power reserve with 28 jewels. The movement features a 22K gold off-center mini-rotor, the proprietary Gyromax balance, and Spiromax balance spring, all certified with the Patek Philippe Seal.