Seiko Cal. 5640 - 977

This Kinetic model from 1968 features a 46mm Gold-Plated case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-1874197f00d9]

Also known as: Silverwave

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1968

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