Seiko Cal. 6636 - 577

The Seiko 6636-577 represents an important milestone in Seiko's 1988 lineup. Powered by the 6636 caliber with 17j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-f73796a97b37]

Also known as: Rally, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1988

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