Seiko Cal. 4428 - 961

This Hand-Winding model from 1978 features a 39mm Two-Tone case. With its 21mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-fa5ec2b1986d]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1978

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