Seiko Cal. 4427 - 196

The Seiko 4427-196 represents an important milestone in Seiko's 1978 lineup. With its 21mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-3fa01b610b9d]

Also known as: Tuna, Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

42mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1978

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