Minute Repeater 3939 — Platinum

Patek Philippe RTO 27 PS

Manual-wind minute repeaterMinute repeaterA mechanism that sounds the time on demand, chiming the hours, completed quarter-hours and minutes elapsed since the last quarter. In a conventional two-gong arrangement, hours sound low, quarters use paired high-low tones and remaining minutes sound high. The action is requested by the wearer rather than triggered automatically at each quarter-hour. with tourbillonTourbillonA rotating cage carrying the escapement and balance, devised to average positional rate errors caused by gravity in upright pocket watches., 336 parts, the tourbillonTourbillonA rotating cage carrying the escapement and balance, devised to average positional rate errors caused by gravity in upright pocket watches. visible from the caseback. 1'903'000 was kept by the Patek Philippe Museum.