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Revision as of 20:14, 13 September 2018
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Vibrations Per Hour or 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]
References
- ^ Fritts, C.E. (1904). The Watch Adjuster's Manual. The Keystone. p. 81. Retrieved 13 September 2018.
- ^ "Vibration, VPH". WatchTime – USA's No.1 Watch Magazine. Retrieved 8 July 2018.
- ^ Doerr, Elizabeth. "The Slowest Watch in the World". Forbes. Retrieved 8 July 2018.
- ^ "Vibration, VPH". Retrieved 31 August 2013.
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