Seiko Cal. 3887 - 538

The Seiko 3887-538 represents an important milestone in Seiko's 1970 lineup. With its 19mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-d9f0f2d2712e]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1970

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