Old clocks and watches & their makers : being an historical and descriptive account of the different styles of clocks and watches of the past, in England and abroad, to which is added a list of nearly twelve thousand makers (1922)
Britten, F. J. (Frederick James), 1843-1913, Britten, Annie · London : E. & F. N. Spon · leaf 160
ed without opening thecover. This style of glass, and the method of fixing it by means ofa loose ring, is perhaps the most primitive ; and taking the date onthe inside of the back cover (1607) to represent the period the watchwas made, it may be assumed to be an early instance of the… … Fig. 149. -French Astronomical Watch.(Two views). Fig. 150. by shifting the lever they may be caused to approach or recede fromthe arm of the balance, whose path they intercept. In this way thevibration of the balance and the timekeeping of the watch werecontrolled. The pointed end of the lever…
Clocks and watches · Clock and watch makers
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