SPB291
Introduced in 1961 and in production until 1975,King Seiko became one of Seiko most technically innovative and stylish brands, noted for its sleek, dignified angularity. A newly developed slim case and the thin 6R31 automatic movement, with a frequency of 21,600 vibrations per hour, a power reserve of approximately 70 hours,
Thickness: 10.33mm
Diameter: 37.0mm
Length: 43.62mm
Box-shaped sapphire crystal with anti-reflective coating on the inner surface
Purple
Stainless steel bracelet with mirror and hairline finishing
10 bar. 100 meters (330 feet)
Automatic
21,600 vibrations per hour
Power reserve: approximately 70 hours
24 jewels
6R31
JSY6R3C1