Seiko Cal. 3899 - 987

The Seiko 3899-987 represents an important milestone in Seiko's 1983 lineup. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-fb21c438ee26]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

19j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1983

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