Seiko Cal. 6647 - 291

The Seiko 6647-291 represents an important milestone in Seiko's 1975 lineup. Powered by the 6647 caliber with 20j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-f50f5b99673c]

Also known as: Rally, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1975

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