Seiko Cal. 4470 - 220

The Seiko 4470-220 represents an important milestone in Seiko's 1978 lineup. Powered by the 4470 caliber with 18j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-69c1ca7cb96d]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1978

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