Seiko Cal. 4481 - 920

The Seiko 4481-920 represents an important milestone in Seiko's 1987 lineup. With its 22mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-5560e99f413a]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1987

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