Ulysse Nardin is a luxury Swiss watch manufacturer founded in 1846 in Le Locle, Switzerland, which has remained in continuous production since. Ulysse Nardin has operated out of the same building headquartered in Le Locle, Switzerland since 1865. Historically, the company is best known for its manufacture of highly accurate marine chronometers supplied at one point during the 1800s to over fifty of the world's navies