Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
G04B45/04—Time pieces with invisible drive, e.g. with hands attached to a rotating glass disc
G04B45/046—Time pieces with invisible drive, e.g. with hands attached to a rotating glass disc the driving mechanism of the hands being invisible because of special shielding