Seiko Cal. 5618 - 531

The Seiko 5618-531 represents an important milestone in Seiko's 1974 lineup. Powered by the 5618 caliber with 26j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-d7f364e88aaf]

Also known as: Shogun, World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1974

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