Patek Philippe R-TO-27

The Patek Philippe R-TO 27 is a manually wound movement combining a minute repeater with classic gongs and a tourbillon. It measures 28 mm in diameter and 6.58 mm in height, beats at 21,600 vph, and delivers a power reserve of 40 to 48 hours using 336 parts with 28 jewels. The movement features a gold third wheel and flywheel, a Gyromax balance with Breguet hairspring, and carries the Patek Philippe Seal. It is featured in the Ref. 5538 Grandeur collection.