Seiko Cal. 4471 - 722

Seiko 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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