Seiko Cal. 6639 - 704

The Seiko 6639-704 represents an important milestone in Seiko's 1994 lineup. With its 20mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-97f6ee1125d2]

Also known as: Panda

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1994

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