Seiko Cal. 5618 - 648

The Seiko 5618-648 represents an important milestone in Seiko's 1978 lineup. With its 19mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-44a6e1af8602]

Also known as: World Timer, Emperor

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1978

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