Seiko Cal. 6650 - 661

This Quartz model from 1971 features a 41mm Stainless Steel case. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-14a6b059f7ee]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1971

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