Citizen
Citizen is a major Japanese watch manufacturer founded in 1918, recognized for its significant contributions to horological technology and its vertically integrated production process. The brand is perhaps most famous for its Eco-Drive technology, introduced in 1976, which allows watches to be powered by any light source, eliminating the need for battery replacements. Key collections include the Promaster line, which offers professional-grade tool watches for air, land, and sea, such as the Promaster Dive and Skyhawk models. Additionally, Citizen produces the high-accuracy Attesa and Series 8 collections, as well as the popular Tsuyosa automatic series, which features integrated bracelets and vibrant dial colors. The company is also noted for its pioneering use of Super Titanium, a proprietary material that is significantly lighter and more scratch-resistant than traditional stainless steel.
Casio
Casio is a Japanese multinational electronics corporation, founded in 1946 by Tadao Kashio, that transitioned from manufacturing calculators to becoming a global leader in digital and analog horology. The brand launched its first timepiece, the Casiotron, in 1974, which was the world’s first digital watch to feature an automatic perpetual calendar. Casio is most renowned for its G-Shock line, introduced in 1983 with the DW-5000C, which established a new category of shock-resistant “indestructible” watches. Other key pieces include the ubiquitous and affordable F-91W digital watch, the vintage-inspired calculator series like the CA-53W, and the Edifice line, which focuses on sophisticated analog designs with advanced technical features like Tough Solar and Bluetooth connectivity. The brand’s catalog further extends to specialized tool watches such as the Pro Trek series for outdoor enthusiasts and the versatile CasiOak GA-2100, which has gained significant popularity for its slim, octagonal geometric design.