Seiko Prospex SPB143J1 55th Anniversary Automatic Grey Dial Stainless Steel Strap

Since being established in 1881, Seiko has contributed to society with one revolutionary product after another - starting with the production of Japan's first wristwatch in 1913 and including the creation of the world's first quartz watch in 1969.
Seiko has also been the official timekeeper at many international sporting events since the Tokyo Olympic Games in 1964. Seiko has been privileged to share moments of tremendous excitement with athletes and spectators worldwide.
Today, while watches remain the heart of Seiko's business, its technological expertise in micro-engineering, metallurgy and mechatronics has caused the company to expand into many diverse fields including camera components, other precision instruments, eyeglasses, jewelry, as well as sports and toiletry products.

Specification 

Brand: Seiko
Case size:40.5mm
Bezel: aluminium
Dial: grey
Lug width: 20mm
Bracelet: stainless steel type
Crown: screw down
Movement: 6r35
Function: 3 hands automatic with date