Seiko Cal. 4471 - 520

The 4471-520 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4471 caliber with 33j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-7741d0aee8ee]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1972

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