Seiko Cal. 6635 - 486

The Seiko 6635-486 represents an important milestone in Seiko's 1987 lineup. With its 22mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-48e5b66b4020]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1987

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