Schaumburg Hrepet Resonanz III repeater that strikes the hour with a gong, one of the most complex disciplines in watchmaking. like new, complete set, comes with a handmade leather bag, one year warranty. Material: Stainless steel, Double-sided black ceramic case inlay Diameter: 42 mm Height: 12 mm Crystal: Domed sapphire crystal Water resistance: 5 ATM Caliber: HRP-01 Type: Mechanical movement with automatic winding Functions: Hours, minutes, mechanical hour repeater “Resonance” version: additionally with central seconds Power reserve: 42 hours Frequency: 28,800 vibrations per hour (4 Hz) Jewels: 24 Special feature: Modified movement with integrated mechanical hour repeater Design: Partially open to reveal the hammer and gong of the hour repeater Stral: Genuine leather by RIOS Augsburg Clasp: Folding clasp Collector’s roll case by HandMade