Seiko Cal. 6644 - 122

This Hand-Winding model from 1972 features a 35mm Hardlex-Coated Steel case. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-a28fa89ee5cf]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1972

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