Seiko Cal. 5664 - 659

This Automatic model from 1981 features a 38mm Two-Tone case. It features a Green dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-db92ba9ee846]

Also known as: UFO, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1981

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