Seiko Cal. 4428 - 158

Released in 1968, the Cal. 4428 with design code 158 was part of Seiko's domestic market collection. With its 20mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-75376ef453bd]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1968

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