Seiko Cal. 6635 - 813

The Seiko 6635-813 represents an important milestone in Seiko's 1981 lineup. With its 20mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-901c3a15a9d5]

Also known as: Panda

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1981

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