Seiko Cal. 4481 - 907

The Seiko 4481-907 represents an important milestone in Seiko's 1983 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-ab2b8b7aa316]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1983

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