Seiko Cal. 5644 - 718

The Seiko 5644-718 represents an important milestone in Seiko's 1984 lineup. With its 18mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-535bdf548aaf]

Also known as: Silverwave

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1984

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