Seiko Cal. 6645 - 718

This Solar model from 1977 features a 44mm Hardlex-Coated Steel case. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-39b3ae6cf0b2]

Also known as: UFO, Flighty

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

18j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1977

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