Seiko Cal. 5691 - 977

This Hand-Winding model from 1965 features a 39mm Two-Tone case. It features a Champagne dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-569218c3065a]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1965

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