Seiko Cal. 5668 - 788

This Spring Drive model from 1971 features a 37mm Two-Tone case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-7e32ef5f4b6e]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1971

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