Seiko Cal. 6663 - 780

This Hand-Winding model from 1978 features a 38mm PVD Black case. It features a Green dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-ab9f127d1dd4]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1978

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