Seiko Cal. 5687 - 578

This Automatic model from 1987 features a 37mm Stainless Steel case. Powered by the 5687 caliber with 18j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-c5d4e5d0c422]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1987

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