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| View Original: | Alarm Clock Balance Wheel.jpg (1803x1357) | |||
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| Keywords: Alarm Clock Balance Wheel.jpg Balance wheel in a cheap 1950s mechanical alarm clock the Apollo by Lux Mfg Co 2 4 cm diameter Arrows point to the hairspring 1 and the regulator 2 It has a rate of 4 beats ticks or two cycles per second The clock belongs to me and is still working Own 2007-06-16 Chris Burks Chetvorno Wheels Balance wheels Balance springs | ||||
