Seiko Cal. 4421 - 156

The Seiko 4421-156 represents an important milestone in Seiko's 1986 lineup. With its 21mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-b0fcc5258579]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1986

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