Authentic Patek Philippe Cubitus model 5821/1A-001. Features an automatic movement, Caliber 26-330 S C with 45 hours power reserve. Includes hour, minute, second and date functions positioned at the 3 o'clock mark. Comes equipped with a screw-down crown, scratch-resistant sapphire crystal, octagonal case shape measuring 45mm in diameter and 8.30mm thick. Features luminous silver-tone hands combined with stick hour markers supplemented by minute markers on its outer rim. Constructed from brushed and polished stainless steel with a matching bracelet and deployment clasp featuring push button functionality. Smooth bezel design complements the green dial surface. The watch offers water resistance suitable for shallow swimming at depths up to 30 meters (100 feet). Includes WatchMaxx warranty coverage spanning two years.