Seiko Cal. 5640 - 467

The Seiko 5640-467 represents an important milestone in Seiko's 1979 lineup. Powered by the 5640 caliber with 36j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-8847b67bdeab]

Also known as: Silverwave, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1979

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