What are some other early electronic watch technologies that preceded the widespread use of quartz?

Toccata Ladies 68 Diamonds Mother-of-Pearl Dial Two-Tone Bracelet Watch, 22.6 x 28.1mm. $2,125.00 Shop · Toccata Ladies Diamond Mother-of-Pearl Dial ... Description · Sold individually · Outside Diameter: 6 3/4 x 8 Ligne or 15.3 x 17.8mm · Movement 3.15mm thick · The height from the bottom of the watch movement ... With their movements featuring “Côtes de Genève” finishing in keeping with the stringent quality requirements cherished by the Manufacture, Vacheron Constantin ... The watch is powered by the FC-220 quartz caliber, is water-resistant up to 50 metres and each model is distinguished by a dial with guilloché decoration. 'Quartz' and 'mechanical' merely refer to the type of movements you'll find in watches. A movement – or 'calibre' – is the mechanism used to power a watch and ... This reliable timepiece ensures you're never a minute late. It's crafted in black ion plated stainless steel and features a black-tone dial, date window, 40mm ... The huge choice of dial variants, along with the option of quartz or automatic movements, make this piece a watch for every automotive lover. Mar 27, 2019 ... The tuning fork crystal as is used in watches is the “classic” among quartz crystals. Since the 1970s, his frequency has always been at ... Oct 9, 2023 ... Behind a Mecha-Quartz movement lies a sophisticated technology that combines the advantages of battery-operated and automatic movements. Oct 10, 2017 ... With the digital watch cheapened in both price and image, sales of the higher quality and higher priced analog quartz watches picked up in 1976.