Patek Philippe GS-36-750-PS-IRM

Caliber GS-36-750-PS-IRM is a hand-wound movement manufactured by Patek Philippe. It measures 37 mm in diameter and 7.5 mm thick, beats at 3.5 Hz with 95 jewels, and delivers a 72-hour power reserve. The movement features a grande sonnerie, petite sonnerie, minute repeater, and jumping small seconds, with separate power reserve indicators for both the movement and strikework. It uses Gyromax® balance and Spiromax® balance spring and carries the Patek Philippe Seal.