Seiko Cal. 5642 - 764

The Seiko 5642-764 represents an important milestone in Seiko's 1985 lineup. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-fd91563ee037]

Also known as: Helmet, Sea Horse

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1985

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