Seiko Cal. 5640 - 970

The Seiko 5640-970 represents an important milestone in Seiko's 1967 lineup. Powered by the 5640 caliber with 30j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-f3cb2bdd5bac]

Also known as: Goldfeather, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1967

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