Seiko Cal. 5691 - 866

This Hand-Winding model from 1972 features a 40mm Stainless Steel case. It features a Green dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-6e2364118394]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1972

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