Seiko Cal. 5613 - 840

This Solar model from 1973 features a 35mm PVD Black case. With its 20mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-39f4e411a67d]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

19j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1973

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