Here is a natural and polished English translation, suitable for a watch catalogue: Onsa was a Swiss watch brand founded in 1923, known for its durable mechanical and automatic watches, particularly popular in the mid-20th century. The company supplied watches to Sabena pilots and was involved in endurance sporting achievements. During the quartz crisis, the company faced difficulties and was eventually sold, thereafter focusing mainly on European and Swiss markets. Vintage Onsa watches are now regarded as sought-after pieces, appreciated for their history and Swiss craftsmanship. At Late-Again, we offer a remarkable selection of Onsa quartz watches typical of the 1970s and 1980s.