Seiko Cal. 6639 - 892

The Seiko 6639-892 represents an important milestone in Seiko's 1989 lineup. With its 20mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-1156333e8d62]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1989

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