Seiko Cal. 6663 - 750

This Hand-Winding model from 1974 features a 35mm Two-Tone case. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-50ad817cf471]

Also known as: Monster, UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1974

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