Eska was a Swiss watch company founded in the 1910s by Sylvan Kocher in Grenchen. The name “Eska” was derived from the phonetic spelling of his initials “S.K.”, reflecting a personal connection between the founder and the brand. Like many Swiss maisons of the early 20th century, Eska specialized in reliable, mid-tier wristwatches during a period when wristworn timepieces were replacing pocket watches. Throughout the interwar and post-WWII decades, the brand became known for producing elegant dress watches and functional tool pieces, often powered by robust Swiss ébauches. Eska experimented with automatic and chronograph calibers, as well as complications such as alarms and calendars, adapting to the technical trends of the 1940s–1960s. While never a household name like Omega or Longines, Eska carved a niche for solid quality and tasteful design, distributing internationally in Europe and the Americas. By the quartz crisis of the 1970s, the company—like many independents—struggled to compete against cheaper electronic watches, leading to its decline. Today, surviving Eska watches, particularly those with unusual dials or rare case designs, are appreciated by collectors as charming representatives of mid-century Swiss horology. The brand’s story encapsulates the rise and fall of many smaller watchmakers who thrived in the mechanical era but faded in the quartz revolution, leaving behind a legacy of craftsmanship and understated style.