Seiko Cal. 6642 - 639

The Seiko 6642-639 represents an important milestone in Seiko's 1991 lineup. With its 20mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-e9566c9ca019]

Also known as: Goldfeather, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1991

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