Seiko Cal. 3891 - 873

The Seiko 3891-873 represents an important milestone in Seiko's 1972 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-60b8be37bd02]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1972

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