Seiko Cal. 5687 - 742

This Solar model from 1982 features a 40mm Stainless Steel case. Powered by the 5687 caliber with 20j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-5cfdd84de71b]

Also known as: Samurai, Sumo

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1982

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