Seiko Cal. 6643 - 653

The Seiko 6643-653 represents an important milestone in Seiko's 1987 lineup. With its 21mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-052cdecc21f6]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

22j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1987

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