Vibrations per hour (vph, VPH) is a mechanical timepiece specification. It is used to express the frequency of a watch movement. [1] [2] VPH describes the number of times that a vibrating timekeeping component completes a vibration cycle in 1 hour. [3] More vibrations per hour yields higher timekeeping resolution, and usually indicates a higher precision mechanical movement. [4]
Vibrations per hour (vph, VPH) is a mechanical timepiece specification. It is used to express the frequency of a watch movement. [1] [2] VPH describes the number of times that a vibrating timekeeping component completes a vibration cycle in 1 hour. [3] More vibrations per hour yields higher timekeeping resolution, and usually indicates a higher precision mechanical movement. [4]