Seiko Cal. 5687 - 177

The Seiko 5687-177 represents an important milestone in Seiko's 1985 lineup. With its 21mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-ffb41bc3d16b]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1985

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