Vibrations per hour
From HandWiki
Short description: Mechanical timepiece specification
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]
See also
- Hertz (Hz)
References
- ↑ Fritts, C.E. (1904). The Watch Adjuster's Manual. The Keystone. p. 81. https://archive.org/details/watchadjustersma00frit. Retrieved 13 September 2018.
- ↑ "Vibration, VPH". WatchTime – USA's No.1 Watch Magazine. https://www.watchtime.com/reference-center/glossary/vibration-vph/.
- ↑ Doerr, Elizabeth. "The Slowest Watch in the World". Forbes. https://www.forbes.com/sites/elizabethdoerr/2013/03/02/the-slowest-watch-in-the-world/.
- ↑ "Vibration, VPH". http://www.watchtime.com/reference-center/glossary/vibration-vph/. Retrieved 31 August 2013.
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