Seiko Cal. 5686 - 540

This Solar model from 1976 features a 41mm Stainless Steel case. With its 18mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-fe4c3c5e8bb5]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1976

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