Seiko Cal. 6634 - 475

The Seiko 6634-475 represents an important milestone in Seiko's 1987 lineup. Powered by the 6634 caliber with 21j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-580ecdf637dd]

Also known as: Flighty

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1987

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