Seiko Cal. 4428 - 704

The Seiko 4428-704 represents an important milestone in Seiko's 1984 lineup. With its 18mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-8156bf17f358]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

19j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1984

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