Seiko Sportsmatic 15017 Unique Dial The origin of the Five, released in 1961. This is the first spinning top mark of the Sportsmatic. It features a gold dial with decorative elements around the outer circumference of the indices, a unique dial. It's a beautiful item with a slim lug design and minimal signs of wear. The case back has some scratches, but the model number is still engraved on the outer edge. The crown operates smoothly. Cal. 2451 17 jewels automatic Dial: Gold Mechanical Automatic Production Year: Early 1960s Material: Stainless Steel Water Resistance: Not Water Resistant Crystal: Plastic Case diameter: Approximately 36mm (including the crown) Length (lug to lug): Approximately 44mm Thickness: Approximately 11mm (including the crystal) Lug width: 19mm Accessories: None As a bonus, I'll include another vintage strap, which is unused. This is a cool watch that is over 50 years old. Please refrain from purchasing if you are looking for a perfect item. Thank you.