Seiko Cal. 5687 - 549

This Spring Drive model from 1971 features a 40mm Stainless Steel case. Powered by the 5687 caliber with 17j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-ac16dbac5e19]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1971

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