Seiko Cal. 5691 - 786

This Spring Drive model from 1992 features a 36mm Gold-Plated case. With its 18mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-f54e31cb03f5]

Also known as: Monster, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1992

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