When Kintaro Hattori founded his company in 1881, he was just 21 years old. During his fifty years at the helm, Seiko became the leading watch company in Japan, with its own design and production facilities. This achievement was a direct result of his single-minded vision that Seiko should always be “one step ahead of the rest”.
Key Features:

• Street-style all-black design accentuated by different applied materials, textures and finishes
• Automatic with manual winding capability
• 21,600 vibrations per hour
• 24-hour inner ring
• Day/date calendar
• Luminous hands and markers
• Screwdown see-through caseback
• Stainless steel case with black ion finish
• Black nylon strap
• Water-resistant to 10 bar, 100 meters (330 feet)
• Caliber 4R36

Seiko 5 Sports SRPJ11 Nylon Strap Black Dial Automatic Men's Watch Specifications:

• Caliber Number: 4R36
• Movement Type: Automatic with manual winding
• Power reserve: Approx. 41 hours
• Jewels: 24
• Functions: Stop seconds hand function. Day/Date display
• Case Material: Stainless steel (hard coating)
• Case Size: Thickness:13.1mm. Diameter:39.4mm. Lug-to-lug:48.0mm
• Crystal: Curved Hardlex
• Band Material: Nylon
• Distance between lugs: 20
• Water Resistance: 10 bar
• Weight: 76.5g