Seiko Cal. 4587 - 690

This Spring Drive model from 1967 features a 36mm Hardlex-Coated Steel case. Powered by the 4587 caliber with 17j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-0fa4ee860d9a]

Also known as: Silverwave, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1967

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