Delma is a Swiss watch brand founded in 1924 by the Schwob brothers in Lengnau, Switzerland, originally under the name Thuya before adopting the Delma name in 1966. The brand built its reputation on producing reliable, well-crafted watches with a strong focus on sport and diving timepieces. During the mid-20th century, Delma gained recognition with models like the Shell Star, a robust diver that became a cornerstone of the brand’s identity. Over the decades, Delma has remained an independent, family-owned company, continuing to emphasize durability, water resistance, and practical design. In modern times, collections such as the Santiago and Blue Shark showcase the brand’s expertise in professional-grade dive watches, with extreme depth ratings and solid construction. Today, Delma represents a blend of traditional Swiss watchmaking and functional tool-watch heritage, appreciated for its independence, consistency, and commitment to producing dependable mechanical watches.