Abstract: A method for synthesizing beryl crystals from a raw material substantially that of natural beryl and at least one material of molybdates, vanadates and tungstates to form a flux is provided. The raw material and oxides are melted and a rotating beryl seed crystal is placed in contact with the rotating melt zone and drawn away from melt zone so that beryl crystal is synthesized as the seed crystal is withdrawn from the melt zone. The melt zone may be formed in a zone floating furnace with rotating axes or in a rotating crucible.

Abstract: A ceramic capacitor operatively connected to a piezoelectric oscillator for compensating for the temperature dependence of the oscillator frequency is provided for thereby optimizing the accuracy of an electronic timepiece.

Abstract: An electro-optical digital display particularly suited for use in an electronic wristwatch is provided. The display includes a transparent ceramic material formed as a plate having a pair of opposed major surfaces. Circuitry selectively applying an electric field to the ceramic material, the circuitry including a first transparent electrode engaging a first major surface of the plate and a second reflective electrode adapted to reflect light incident thereon provided from the second major surface of the plate. The first transparent electrode is segmented to define selected regions of application of an electric field to the selective regions of a ceramic plate.