Seiko Cal. 4471 - 722

The 4471-722 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4471 caliber with 22j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-eb73424e82ca]

Also known as: Sumo, Bullhead

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1991

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