Seiko Cal. 4471 - 520

The 4471-520 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4471 caliber with 32j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-04ea8bde0e8b]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1969

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