Seiko Cal. 5643 - 900

The Seiko 5643-900 represents an important milestone in Seiko's 1977 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-ed4239bcfce9]

Also known as: Shogun, Silverwave

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1977

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