Seiko Cal. 0789 - 643

The Seiko 0789-643 represents an important milestone in Seiko's 1976 lineup. Powered by the 0789 caliber with 31j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-4a3b5ee29d3b]

Also known as: Goldfeather, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1976

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