Seiko Cal. 5642 - 781

The Seiko 5642-781 represents an important milestone in Seiko's 1966 lineup. Powered by the 5642 caliber with 34j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-2c3fab1e538c]

Also known as: Rally

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1966

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