Seiko Cal. 4472 - 939

This Hand-Winding model from 1977 features a 43mm Stainless Steel case. Powered by the 4472 caliber with 27j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-5c7488764a56]

Also known as: Helmet, Rally

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1977

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