Seiko Cal. 4442 - 994

This Spring Drive model from 1982 features a 36mm Hardlex-Coated Steel case. Powered by the 4442 caliber with 36j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-b7ed46e889ae]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1982

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