Seiko Cal. 6691 - 501

This Spring Drive model from 1987 features a 36mm Hardlex-Coated Steel case. It features a Silver dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-20815eba2347]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1987

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