Seiko Cal. 5643 - 580

The Seiko 5643-580 represents an important milestone in Seiko's 1969 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-60e08aaaa150]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1969

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