What technological advancement characterized the watch industry in the 1980s?

The watch industry in the 1980s was notably characterized by a significant focus on quartz technology. This era marked a pivotal shift as quartz movement watches became more popular due to their accuracy, reliability, and lower production costs compared to traditional mechanical watches. The introduction of quartz movements revolutionized the industry, leading to a surge in production and a change in consumer preferences.

During this time, many brands embraced the new technology, which also allowed for thinner watch designs and more innovative styles. As a result, the quartz crisis had a profound impact on the market, leading traditional mechanical watchmakers to adapt or face decline. The emphasis on quartz technology set the standard for watchmaking for decades to come, fundamentally transforming how timepieces were made and perceived.

The other options, while relevant to different aspects of watch history, do not accurately capture the primary technological advancement of the 1980s as quartz technology did.