The asymmetrical case of the iconic Ventura bears the unmistakable signature of the 1957 Hamilton design. Much imitated but never equaled, the Ventura remains a timeless symbol in the glorious history of the Maison. The understated dial conceals a quality automatic movement produced in Switzerland. Three-sphere movement with date and power reserve greater than 80 hours, the H-10 features elaborate colimaçon and pearly contrasting patterns for the American Classic models and clean surfaces for the pilot's watches.