Seiko Cal. 4442 - 571

The Seiko 4442-571 represents an important milestone in Seiko's 1987 lineup. Powered by the 4442 caliber with 25j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-15e21b43c097]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1987

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