Seiko Cal. 5640 - 222

This Hand-Winding model from 1978 features a 37mm Gold-Plated case. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-13540fdad22a]

Also known as: Rally, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1978

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