Vintage 23mm Hamilton Silver Sunburst 18J Mechanical Wristwatch Movement 735 USAProduct Description Item: Wristwatch Movement Brand: Hamilton Movement: Mechanical Jewels: 18 Caliber: 735 Country: USA Gender: Men's Product Measurements Diameter: 23mm Diameter of dial: 27mm Product Condition The Hamilton 735 is a high quality, American made mechanical watch movement produced by the Hamilton Watch Company during the 1950s and early 1960s. Overall Condition: Fair, overall condition Functions: Not running Dial condition: Has spotting.