Seiko Cal. 4421 - 317

Released in 1988, the Cal. 4421 with design code 317 was part of Seiko's domestic market collection. With its 19mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-c24df7bfb808]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1988

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