Seiko Cal. 5643 - 666

The Seiko 5643-666 represents an important milestone in Seiko's 1988 lineup. With its 20mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-050137e02408]

Also known as: Panda, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1988

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